Date Open High Low Close Vol OI### 1028.25 1037.25 1027.5 1032 1060806 2319235### 1031.5 1034.75 1023.5 1029.25 1519381 2316144### 1033.25 1050.25 1033.25 1048.25 1968023 2349352### 1048 1053.75 1041 1050.25 1839117 2356006### 1050.75 1056 1038 1042.5 2017636 2362701### 1042.5 1057.25 1036.75 1051.5 1559384 2367497### 1050.25 1059.5 1042.5 1050 1991670 2372653### 1049.5 1059 1033 1038.5 2418114 2412330### 1037 1052.75 1030.75 1051.25 2184400 2427259### 1051 1055.75 1032 1037.5 2348150 2428355### 1037.5 1049 1021.75 1027 2339507 2447660### 1026.75 1030.25 1017.5 1021 2460527 2440271### 1021.5 1023.5 998.5 999 2843071 2515492### 999.25 1024.5 997.75 1022 2298367 2485726### 1021.75 1023.25 990 993.5 3376612 2477634

11/2/2009 991.75 1010 986.5 999.5 2783823 245879511/3/2009 999.75 1004.5 987 1002.25 2315679 248320511/4/2009 1002.25 1019 1001.25 1007.5 2360779 251049311/5/2009 1007.25 1024.5 999.5 1023.75 1949016 251214711/6/2009 1023.75 1030 1014 1026.75 2082058 252535911/9/2009 1026.25 1052.5 1025.5 1052.25 1833896 2503851

### 1052 1055 1045.5 1052.5 1810118 2501068### 1052.25 1063.75 1051.75 1056.75 1800698 2503906### 1056.5 1061.5 1043 1047.75 2020189 2521044### 1048 1056.5 1043.25 1052 1478254 2546421### 1052.5 1072.75 1051.5 1066.75 1992105 2556245### 1066.75 1069.5 1060.5 1068 1517083 2546124### 1068 1071.25 1061.25 1069 1480000 2537795### 1069 1070 1047 1054.75 2047058 2551165### 1054.5 1055.5 1044 1050.5 1451811 2564267### 1050.25 1072 1049.5 1064.25 1545064 2567414### 1064 1067.5 1055.5 1063.5 1584089 2568594### 1063.75 1071.75 1062.75 1069.5 1078340 2574456### 1069.25 1071.75 1027.5 1050 1704981 2599910### 1052 1058.5 1045 1055.25 2016591 2577784

12/1/2009 1055.25 1072.25 1052.75 1069 1835688 258044912/2/2009 1068.75 1076 1064.75 1068.5 1669060 258901512/3/2009 1068.25 1077.5 1058 1058.5 2054949 257231512/4/2009 1058.25 1079.5 1055.75 1068.5 2928961 260833612/7/2009 1068.5 1071.25 1059.25 1064.25 1572214 256825912/8/2009 1065.25 1068 1048.25 1050.5 2251962 249408012/9/2009 1050.5 1058 1045.5 1056 2239481 2351765

### 1055.25 1066.5 1052.75 1062.25 1104971 908695### 1062.75 1070.5 1061.25 1068.25 1710243 1315764### 1067.5 1078 1064.75 1073.5 1720435 1779529### 1073.25 1076 1065.25 1069 1804825 2112600### 1068.75 1077 1068 1070.75 1666850 2277192### 1070.25 1071.5 1055.75 1059.25 2014202 2333026### 1059.25 1067.75 1053.5 1062.7 1732758 2332548### 1062.75 1078.25 1061.5 1073.25 1163792 2359131### 1072.75 1080.75 1072.25 1078.5 930910 2374664### 1078.75 1085 1076.25 1080.5 727761 2376350### 1080.25 1087.5 1079.75 1087 248984 2394340### 1087 1091.25 1082.5 1088 474293 2392937### 1087.75 1093.5 1085.5 1086.75 579344 2397986### 1086.25 1087.5 1078 1087 596890 2393240### 1086.75 1090.25 1074.75 1075.75 638861 2392916

1/4/2010 1078.75 1094.75 1078.25 1093.75 1291254 24404581/5/2010 1093.5 1098 1090 1097.25 1378593 24028501/6/2010 1097 1100.5 1092.25 1098 1259921 23964931/7/2010 1098 1103.75 1092 1102.5 1567025 24063521/8/2010 1102.25 1106.75 1096 1106.5 1527666 2420194

1/11/2010 1106.5 1113 1102.75 1107.5 1456443 24274531/12/2010 1106.25 1108 1092.75 1099 2117166 2439036

1/13/2010 1099.25 1110.25 1094.25 1106.5 2131642 24753221/14/2010 1106.5 1112 1103.25 1110.25 1355731 24733921/15/2010 1111.75 1112.25 1092.5 1097.25 2059496 24544531/19/2010 1096.75 1112 1091.25 1110.75 1927993 24722061/20/2010 1110 1111.5 1090.25 1099 2391710 24821721/21/2010 1099.5 1104.25 1075.25 1076 3438955 25369051/22/2010 1074.75 1080.75 1051.25 1056 3544446 26156801/25/2010 1059 1068 1054.75 1057.5 2080292 25897971/26/2010 1059 1065 1046 1052.25 2449263 26200221/27/2010 1052.5 1061.25 1043.5 1059.5 2634603 26256031/28/2010 1059.5 1068.5 1039.25 1044.25 3052088 26136421/29/2010 1046 1058.25 1031.5 1035.5 3068079 2638822

2/1/2010 1035.5 1051.5 1033 1051.25 1896011 26191972/2/2010 1051 1066.5 1047 1062.25 2104398 26937412/3/2010 1062 1065.25 1055.5 1061.5 1883815 26845012/4/2010 1061.25 1063.25 1024.25 1026.75 3302110 27334072/5/2010 1026.75 1030 1005.75 1024.75 3983950 27521492/8/2010 1024.75 1033.5 1018 1021 2061320 27953242/9/2010 1020.5 1042 1019 1031.25 3014475 2810384

2/10/2010 1031.5 1037.5 1021.25 1028.25 2204772 28132552/11/2010 1028.5 1043 1022.5 1041.5 2262497 28262102/12/2010 1041.25 1044.75 1025 1044 2747993 28373102/16/2010 1041.5 1059 1038.5 1058.25 1761523 27952932/17/2010 1058.25 1065 1057.5 1064.5 1669958 28033012/18/2010 1064.75 1071.75 1058 1070.5 1832739 28045182/19/2010 1070.5 1076 1057.5 1071.25 2096659 27494772/22/2010 1071.25 1077.75 1068.5 1072.5 1317880 27590212/23/2010 1072 1077.75 1055.25 1062.25 2224420 27964102/24/2010 1061.75 1070.5 1057.5 1068.5 1882885 28054112/25/2010 1068 1068.5 1049.5 1067.25 2697610 28302992/26/2010 1067 1072.75 1061.25 1068.5 1944020 2819976

3/1/2010 1068.5 1080.5 1069.25 1079.5 1615001 28160323/2/2010 1079.25 1087.75 1077.75 1082.5 1502795 27755113/3/2010 1082.5 1090 1080 1083.5 1583814 28000913/4/2010 1083.25 1088.5 1079 1087.25 1490362 27511343/5/2010 1087 1103.75 1086.5 1101.5 1869074 27845203/8/2010 1101.5 1105.5 1100 1102 1179723 27676053/9/2010 1102.25 1110.25 1096.5 1105.5 1759468 2732028

3/10/2010 1105 1113 1102.75 1110.75 2112662 25872073/11/2010 1110.25 1116 1103.75 1115.75 1467691 11093453/12/2010 1115.75 1121.75 1111.75 1116.25 1866265 14810623/15/2010 1115.75 1116.25 1106.25 1115.5 1693881 17887533/16/2010 1115.5 1125.5 1114.25 1124.5 2010549 20864563/17/2010 1124.5 1135.25 1123.75 1130.75 2038542 22290543/18/2010 1130.5 1133.75 1126 1131 1819642 23268163/19/2010 1131 1134.75 1120 1126 2165925 23643983/22/2010 1123 1133 1116.5 1131.75 1915804 23666783/23/2010 1131.5 1140.25 1128.75 1139.25 1856410 23435363/24/2010 1139 1139.75 1130.75 1134.25 1992386 23645853/25/2010 1134 1146.25 1130 1132.5 2355473 23903623/26/2010 1132 1139.5 1126.25 1133.25 2161399 24066793/29/2010 1134.5 1140.75 1133.75 1138.5 1454311 24226773/30/2010 1138.25 1143.5 1134 1139.25 1642976 24118473/31/2010 1138.75 1140.25 1131 1135 2109287 2379962

4/1/2010 1136.75 1147.25 1135.5 1143.5 1942722 24035584/5/2010 1148.5 1153.5 1144.25 1152.75 1025888 23978134/6/2010 1152.75 1157.75 1147 1155.5 1395387 23982374/7/2010 1155.5 1156 1143 1148.75 2171684 23649724/8/2010 1148.25 1154.75 1140.75 1153.5 1910628 23891164/9/2010 1153.25 1162.75 1152.75 1162.25 1450628 2383750

4/12/2010 1164.5 1168.25 1160.5 1162.25 1253624 23797854/13/2010 1162 1165.5 1154.75 1162.75 1553891 24129044/14/2010 1165.25 1177 1164.25 1176.25 1727998 24407874/15/2010 1176.25 1180.25 1170.75 1178.25 1732427 24482634/16/2010 1177.75 1178.25 1152.5 1160 3584806 2465049

4/19/2010 1155.75 1166.25 1149.5 1165.25 2480009 24633764/20/2010 1165.5 1175.5 1163.75 1175.25 1534819 24742544/21/2010 1174.75 1179.25 1164.75 1170.25 2168277 24838334/22/2010 1168.25 1176.75 1156 1171.5 2668931 25239684/23/2010 1171 1183.5 1167.25 1182 1856101 25050184/26/2010 1182 1186.5 1177.25 1178 1624454 25044144/27/2010 1177.5 1179.75 1147.25 1150.75 3590721 25519354/28/2010 1151.25 1161.75 1146.5 1159.75 2857714 25344544/29/2010 1159.75 1176 1157.75 1175 1980761 25122314/30/2010 1175.25 1177.75 1152.5 1153.25 2897399 2506087

5/3/2010 1154.25 1171.75 1153.5 1168.25 1797282 25468975/4/2010 1168 1169.5 1134 1142.25 3553338 25377095/5/2010 1141.75 1144.75 1124.5 1133.75 3057926 25914355/6/2010 1133.5 1138.5 1025.75 1092.25 5675645 26883285/7/2010 1093.5 1105.25 1060.5 1076.75 5013862 2647315

5/10/2010 1095 1131.75 1091.25 1126.25 3640288 26466635/11/2010 1125.75 1138.75 1110.25 1122 2663633 26867015/12/2010 1121.5 1141 1110.75 1139.5 2109839 25953385/13/2010 1138.75 1144.5 1123.5 1126.5 1963587 25765515/14/2010 1125.25 1129.25 1093.5 1105 2979512 25897505/17/2010 1103.5 1110 1082.5 1104.25 3052733 25704975/18/2010 1105.25 1117.25 1085 1088.5 3092769 25843895/19/2010 1087.75 1092.5 1068.5 1079.75 3585852 26076205/20/2010 1079.75 1086.25 1037 1039.75 4378875 27280555/21/2010 1039 1058.5 1021 1054.25 4024607 26047445/24/2010 1055.25 1058.5 1039.75 1040.75 2231741 26513235/25/2010 1039 1044.5 1006.5 1042.75 3433912 26567855/26/2010 1042.25 1059.25 1030.25 1031 2929237 26921235/27/2010 1029.75 1072.75 1025.25 1070.75 2613372 26459645/28/2010 1070 1076.5 1053 1058.25 2368730 2642268

6/1/2010 1058.25 1065.75 1038.25 1039.25 2593945 27137526/2/2010 1039 1068 1037 1066.5 2214865 26947306/3/2010 1066.75 1075 1060.5 1073.25 2033254 26579306/4/2010 1073.75 1077.5 1029 1035.75 3211493 27500256/7/2010 1035.75 1040.5 1016.75 1017.75 2390986 27712496/8/2010 1018 1033 1011 1029 3401030 27360636/9/2010 1028.75 1047.5 1021 1025.25 2970468 2561641

6/10/2010 1024.75 1057.5 1021.75 1053.5 1928796 11160276/11/2010 1056.75 1062.25 1044.25 1059 2234724 14354156/14/2010 1061.5 1075.75 1058.25 1060.25 2411842 18748136/15/2010 1059.75 1085.5 1058.25 1083.25 2694530 21990826/16/2010 1083.25 1088.75 1074 1083.5 2522048 24250406/17/2010 1084 1091.5 1074.75 1085.75 2715158 25088426/18/2010 1085.5 1090.75 1082.25 1084.25 1631682 25330266/21/2010 1090 1103.5 1077.25 1084.5 2162081 25718816/22/2010 1084.5 1091 1063.5 1064.5 2286571 26018226/23/2010 1064.75 1071.75 1054.25 1061.5 2235636 25926586/24/2010 1060.5 1065 1040.5 1044.5 2551855 26570336/25/2010 1044.25 1053.5 1036.75 1048.75 2454671 26873826/28/2010 1048.25 1053.75 1040.5 1045 1686899 26798076/29/2010 1044.5 1048.75 1004.25 1009.25 3109449 27423066/30/2010 1009.25 1018.5 997 1000.5 2622061 2762700

7/1/2010 1000.5 1003.75 980 995.75 3354900 28287637/2/2010 996.25 1006.5 984.75 988.25 2135335 28252047/6/2010 985.75 1012.5 976.75 998.25 2431642 28638197/7/2010 998 1033.75 990.25 1033.25 2556140 28346037/8/2010 1032.75 1042.5 1028 1041 2112208 27758447/9/2010 1040.75 1049 1037.25 1046.5 1421814 2747468

7/12/2010 1046.5 1051.25 1039.5 1050.5 1382638 27829937/13/2010 1050 1070 1047 1063.75 2001017 28002057/14/2010 1069 1073 1057.5 1065 1940692 27705387/15/2010 1065.25 1073.25 1050.25 1064.5 2416608 27732747/16/2010 1064.5 1068.75 1033 1037 2503643 27568817/19/2010 1035.75 1045 1031 1037.75 1760879 27851497/20/2010 1037.25 1054.75 1024.75 1054 2275816 2796302

7/21/2010 1053.5 1061.75 1035 1038 2440958 27912877/22/2010 1037.25 1068.5 1035.25 1061.75 2178892 27750617/23/2010 1061.25 1075.5 1058 1074.5 2091081 27709007/26/2010 1074.5 1085.75 1071 1083.5 1543914 27451697/27/2010 1083.25 1092.75 1080 1085 1822245 27587927/28/2010 1084.5 1089.75 1073.25 1076 1641500 27460227/29/2010 1076.5 1087 1062.75 1071 2250104 27613797/30/2010 1070.25 1077.5 1057.5 1072.25 2133582 2709258

8/2/2010 1078.5 1098.25 1075.75 1095.75 1610959 27304878/3/2010 1095.75 1096.75 1087.25 1092.25 1493524 27166448/4/2010 1092 1100 1086.25 1098.5 1591800 26993048/5/2010 1098.75 1101.75 1089.5 1097.5 1340145 27106638/6/2010 1097.5 1101 1077.75 1093.5 2177376 27136808/9/2010 1093.5 1100.75 1090.5 1099.5 998906 2717711

8/10/2010 1099.25 1099.75 1082.25 1093.75 2029717 27167088/11/2010 1093.25 1093.75 1058.5 1059 2638258 27470678/12/2010 1059 1061.5 1044.5 1053.25 2180112 27460578/13/2010 1053.5 1063 1046.5 1050 1479393 27260088/16/2010 1051.5 1055.5 1040.25 1051 1612131 27650678/17/2010 1051.25 1072.5 1048.5 1063 1779783 27872748/18/2010 1063 1072.5 1057.75 1060.75 1814778 27520508/19/2010 1061 1069 1042.5 1045.25 2433838 28157758/20/2010 1044.75 1050 1035.75 1044.25 1806978 27920438/23/2010 1044.25 1054.25 1038.25 1039.5 1567358 28229788/24/2010 1039.5 1039.75 1018 1023.75 2466756 28792408/25/2010 1024 1031.75 1011 1028.5 2478780 28800198/26/2010 1029.25 1035.75 1017 1018.75 1994211 29178678/27/2010 1017.75 1038.5 1011.25 1037.75 2541324 29196158/30/2010 1037.75 1046.75 1018.5 1019 1506592 29305698/31/2010 1019 1028.25 1011.5 1022.25 2516451 2964455

9/1/2010 1025.75 1056.5 1024.75 1055.75 2355074 29018679/2/2010 1055.5 1064.5 1050.5 1063.5 1601762 28758709/3/2010 1063.75 1078.5 1060.25 1077.5 2017072 28505669/7/2010 1078 1081.25 1063.75 1065.25 1751617 28036479/8/2010 1065.5 1077 1060.25 1073.25 2001331 26029369/9/2010 1073 1085.75 1070.75 1076.25 1133889 904547

9/10/2010 1076.5 1084.5 1074.25 1083.75 1530259 13678489/13/2010 1088.75 1097.75 1086.75 1095 1998170 17930469/14/2010 1094.5 1101.25 1089 1094.5 2304737 21275049/15/2010 1094.25 1100.25 1087.75 1099.5 2083703 23723419/16/2010 1099.75 1102.75 1091.5 1101.25 1866295 24535729/17/2010 1101.5 1111.5 1095.75 1098.5 1933484 24369029/20/2010 1097.25 1119 1095.75 1115.25 1789965 24323159/21/2010 1115.25 1122.75 1109 1113.5 2098867 24169819/22/2010 1113.75 1119 1105.25 1108.5 1957234 25141589/23/2010 1108.75 1113.25 1096 1099.25 2190002 25154279/24/2010 1099.25 1123.25 1097.25 1122 1846093 25615449/27/2010 1122.75 1128.5 1115.75 1116.5 1343049 25571819/28/2010 1116.75 1124.75 1106 1120.5 2305031 25664859/29/2010 1120.5 1125.5 1114.25 1119.75 1860633 25822399/30/2010 1119.75 1132.25 1110 1115.5 2825790 253647610/1/2010 1115.5 1125.25 1113.25 1121 2065971 254662710/4/2010 1121 1122.75 1105.75 1113.5 1849807 256944210/5/2010 1113.5 1137.5 1111.5 1133.5 2203058 263893010/6/2010 1133.75 1138.75 1129.75 1134.5 1720880 262353510/7/2010 1134.5 1142.5 1126 1135.25 1988730 262500510/8/2010 1135.25 1142.75 1124.25 1139.25 1969643 2627827

### 1140.25 1143.75 1136.5 1141 1005696 2640554### 1141.25 1147.75 1130.5 1143.25 1941433 2646446### 1144 1159.75 1143 1153 2163266 2723060### 1153.5 1159.5 1141.25 1152.25 2400204 2711338### 1152.75 1158.75 1141.75 1153.75 2644031 2675728### 1153 1161 1143.5 1157 1465558 2688392### 1157.5 1158.25 1134.25 1142.5 3065772 2681018### 1142.75 1158.75 1139.25 1153.5 2289137 2707547

### 1153.5 1165 1146 1154.5 2408540 2689222### 1154 1160.25 1152 1159.45 1204824 2671093### 1159.5 1171.75 1159.25 1161.5 1752840 2679509### 1160.75 1163 1152.75 1161.5 1743843 2686156### 1162 1165 1146.5 1157.5 2246880 2690222### 1157.25 1166.25 1152.25 1158 2014979 2668557### 1158 1161.25 1150.75 1158.5 1751544 2671762

11/1/2010 1158.5 1171.5 1152.5 1161.75 2032082 267046511/2/2010 1161.5 1172.25 1159.5 1171.5 1573659 269498811/3/2010 1171.5 1176.75 1158.25 1176 2361808 268355011/4/2010 1176.25 1197.5 1174 1197.25 2301698 274891211/5/2010 1197 1203.25 1191.25 1200.75 2301698 273505311/8/2010 1199.25 1201 1193.5 1198.75 1542756 280919011/9/2010 1198 1203.5 1185 1189.75 2324133 2778956

### 1189.25 1195.75 1180.5 1192.75 2483583 2797314### 1192.25 1192.5 1180.75 1189.75 1775665 2806244### 1189.25 1190.5 1170.25 1174.25 2766115 2812753### 1174.25 1184.5 1171.25 1174.5 2071297 2827290### 1174 1174 1149.75 1153.5 3168883 2831177### 1154.5 1160.75 1152 1156.25 2021219 2779026### 1156.5 1177.75 1155.75 1176.5 2067180 2808354### 1176.25 1178.75 1166.25 1177 1733603 2794626### 1181.5 1184.75 1161.25 1176.75 2212329 2773910### 1175.75 1176.5 1153.5 1157 2456997 2778957### 1156.75 1176.25 1154.25 1175.25 1821455 2782893### 1177.75 1179.25 1161.25 1162 963332 2773708### 1162 1172.5 1151 1165.25 2491942 2771661### 1165.25 1167 1151.75 1158.25 3089404 2792037

12/1/2010 1158.25 1186.5 1155 1183.25 2346276 282775612/2/2010 1182.75 1202 1180.75 1201.5 2037342 284519312/3/2010 1201.5 1206 1191.75 1202.25 1890658 285526312/6/2010 1202.25 1205.5 1195 1200.75 1326050 280350712/7/2010 1201.5 1213.75 1197.75 1202 2449523 274378112/8/2010 1201.5 1208 1196 1207.5 2142544 251884212/9/2010 1207 1216.75 1205 1211.75 1073405 871881

### 1211.5 1220 1210.5 1219.75 1450096 1279636### 1219 1225.75 1215.75 1220 1824807 1594522### 1219.75 1226 1216.5 1220.5 2008662 1991813### 1220.5 1223.25 1212.5 1215.75 2114241 2245053### 1215.75 1223.5 1211.25 1222.25 1738245 2397297### 1222.25 1224.75 1218.25 1222.25 1340620 2392696### 1223.75 1229.5 1217.75 1225 1145804 2422001### 1224.75 1235 1224.5 1234.5 943293 2433418### 1233.75 1238.75 1232.75 1238.25 664450 2433411### 1238.25 1239.5 1233 1236.75 594048 2437477### 1233.25 1238 1229.25 1237 587701 2458879### 1237.25 1240.25 1235.25 1237.75 553798 2477060### 1237.75 1242.25 1237 1239.5 588441 2475165### 1239.5 1241.25 1235.25 1238.25 713588 2469321### 1238 1241.5 1233.25 1236.75 667046 2478376

1/3/2011 1236.75 1256.25 1236.75 1249 1591034 25007211/4/2011 1248.5 1253.75 1242 1249 1778621 24955281/5/2011 1249.25 1257.5 1239.5 1255.5 1797267 25107751/6/2011 1255.5 1260.75 1250 1254 1614397 24952671/7/2011 1253.5 1257.75 1241.5 1251.25 2175596 2505895

1/10/2011 1250 1251.75 1241.75 1249.25 1876415 25079621/11/2011 1249.25 1257.5 1247.75 1254.25 1662412 25278041/12/2011 1253.75 1268 1253 1267.25 1604117 25577911/13/2011 1267 1268.25 1260 1265 1671242 25310811/14/2011 1265 1273.75 1258 1273.25 1631162 25273551/18/2011 1269.25 1278.75 1266.5 1278.5 1673094 25635431/19/2011 1278.25 1280 1258.75 1262.25 2322868 25868021/20/2011 1263 1265.25 1251.25 1260 2534106 26143261/21/2011 1259.75 1271.75 1257 1263.5 2012431 25948711/24/2011 1263.25 1273.5 1261.5 1272.25 1635794 2634978

1/25/2011 1272.25 1275.5 1260.75 1271.25 2360267 26359381/26/2011 1271 1280.5 1269.75 1277.25 1609255 26468871/27/2011 1277.5 1282 1273 1279.5 1554851 26342551/28/2011 1279 1283.25 1254.25 1255.25 3238629 26947291/31/2011 1255.25 1267.5 1246 1266.25 2314420 2666224

2/1/2011 1266.25 1289.75 1265 1286.5 2089240 26902412/2/2011 1286 1289.25 1281.75 1283.75 1396167 27143682/3/2011 1284 1289.5 1275.25 1287 1828391 26928052/4/2011 1287 1292.25 1281.75 1291 1585618 27066402/7/2011 1291 1303.75 1289.75 1299.5 1501112 27301582/8/2011 1298.75 1306 1296.75 1305.5 1453914 27549842/9/2011 1305.25 1305.75 1295.5 1303 1825859 2780883

2/10/2011 1302.25 1304.25 1292.25 1302.5 2055532 27990772/11/2011 1302 1312.5 1293.75 1311 1881031 27992142/14/2011 1311 1315 1308.25 1311.5 1171814 28095122/15/2011 1311.75 1313 1306 1310 1457415 28142502/16/2011 1310 1319.75 1309.5 1316.75 1801087 28452872/17/2011 1316.75 1323.75 1312.25 1321.5 1677669 28496482/18/2011 1321.5 1326.75 1318.75 1326.25 1516091 28547002/22/2011 1326 1326.25 1294 1298.25 3257861 28982562/23/2011 1297.75 1304.25 1281.25 1289.25 3075485 29101012/24/2011 1289.5 1294.5 1276.25 1286.5 2903883 28753052/25/2011 1286.25 1303.75 1285.25 1302.5 1827557 28714122/28/2011 1302 1312.75 1296.75 1309.75 1941581 2852603

3/1/2011 1309.75 1320.25 1284.5 1284.75 3054741 28983473/2/2011 1285 1297.5 1280 1289.5 2680941 29153393/3/2011 1290 1315.75 1288.75 1313.5 2361733 28875153/4/2011 1313.5 1318.25 1295 1304 2944659 28942513/7/2011 1304 1311 1286.5 1292.75 2702700 28977763/8/2011 1292.5 1309.5 1289.75 1303.75 2209200 27983413/9/2011 1303.5 1308.75 1295.25 1299.25 2196273 2614534

3/10/2011 1299.75 1301.25 1276.5 1278.25 1844627 9459513/11/2011 1277.75 1292.5 1267.25 1290 2185696 13101213/14/2011 1287.25 1289.5 1269.75 1279.25 2788791 16392973/15/2011 1279.25 1282 1239.75 1264 3992352 21343863/16/2011 1263.5 1272.25 1232 1242.75 4540281 25184023/17/2011 1243.5 1263.25 1230 1257.5 2979478 25869293/18/2011 1257.25 1276.25 1250.25 1263 2342198 25659443/21/2011 1265 1285 1263.5 1281.75 1488232 25538223/22/2011 1281.25 1285.25 1276.25 1277 1441789 25688983/23/2011 1276.5 1284.75 1267.75 1280.75 1939892 25875223/24/2011 1280.75 1295.5 1278 1294 1833298 26035343/25/2011 1293.25 1303.25 1292.75 1298.75 1651563 25984023/28/2011 1298 1304 1290.75 1291 1290490 26314283/29/2011 1291.5 1306.5 1289 1305.25 1549071 26508483/30/2011 1305 1316.5 1303.5 1312.75 1407633 26383343/31/2011 1313.25 1314.5 1309.25 1309.75 1521964 2647743

4/1/2011 1309.75 1322.5 1309.25 1316.5 1660075 26352554/4/2011 1315.75 1321.5 1313.25 1318 1273974 26462334/5/2011 1318.5 1323 1311.75 1315.5 1558287 26751374/6/2011 1315.75 1325.25 1314.75 1317.75 1656416 26655694/7/2011 1317.75 1324 1311 1317.25 2180272 26717184/8/2011 1317.25 1324.5 1307.5 1312.5 1858868 2688459

4/11/2011 1314.5 1319 1305.75 1308.25 1527470 26951694/12/2011 1309 1309.25 1294 1297 2078928 26850244/13/2011 1297 1307.5 1293.75 1297.5 1919662 26675144/14/2011 1298 1302 1287 1299 2027796 26904144/15/2011 1299.25 1308 1294.5 1307.5 1644200 26833324/18/2011 1307 1307.5 1279 1289.75 2255340 26876404/19/2011 1289.75 1298.25 1282.75 1297.25 1528995 26931174/20/2011 1297.5 1319.25 1297.25 1317 1871971 26945074/21/2011 1317.25 1326.5 1316.75 1319.75 1276072 26818634/25/2011 1319.25 1324 1316 1319.5 599322 26933634/26/2011 1319.5 1335 1316.75 1329.75 1386038 27264164/27/2011 1329.75 1343 1329 1339.75 1386295 2751861

4/28/2011 1340.25 1347.25 1335.5 1343.75 1706910 27433974/29/2011 1343.75 1352.5 1341.5 1348.5 1272342 2742628

5/2/2011 1352 1362.25 1343.5 1346.5 1707040 27420245/3/2011 1346.5 1347.25 1334.5 1340.75 1674060 27941955/4/2011 1340.5 1343.75 1326.25 1331.75 2382666 27904435/5/2011 1332 1337.5 1314 1323.75 2915006 27587985/6/2011 1323 1340.5 1320.5 1323.25 2673077 27515905/9/2011 1326 1335 1323.25 1331.5 1666599 2677123

5/10/2011 1331.25 1345.25 1327.75 1342.5 1571216 26807565/11/2011 1342.5 1347 1321.75 1327.5 2190906 26649635/12/2011 1328 1337.5 1317.5 1336.25 2254909 26471615/13/2011 1336 1341.25 1319.25 1322.75 2235430 26500275/16/2011 1320.75 1330 1313.5 1314.25 2177046 26664845/17/2011 1314 1320.75 1304.75 1314.25 2292146 26880085/18/2011 1315 1329.25 1313.25 1327.25 1612220 26951035/19/2011 1327 1334.25 1323.25 1330.5 1825276 27067445/20/2011 1330.25 1332.75 1315.75 1316.5 2248408 27194625/23/2011 1314.75 1315.75 1299.5 1304 2054242 27523165/24/2011 1303.5 1311.25 1300.5 1302.25 1860601 27611995/25/2011 1301.75 1313.25 1291 1305.25 2100699 27806145/26/2011 1305.25 1316.25 1301.25 1315.25 2286732 27620615/27/2011 1315.25 1322.5 1313.25 1318.75 1393298 27750885/31/2011 1319.75 1334.5 1317 1332.75 1927228 2815719

6/1/2011 1332.75 1336.5 1300 1300.75 2681845 28351326/2/2011 1302 1306.5 1293 1301.25 2433178 28152086/3/2011 1301 1302.25 1283.25 1285 2677734 29305886/6/2011 1287.5 1287.75 1272 1273.75 2185300 28890576/7/2011 1274 1284.25 1271.25 1273.5 2069553 28035936/8/2011 1273.75 1276.5 1265 1265.75 2695851 26718286/9/2011 1267.25 1282.75 1264 1276.25 978448 808832

6/10/2011 1276.5 1277.75 1256 1258 2355546 12019826/13/2011 1259.25 1266 1253.75 1260.5 2517553 15841086/14/2011 1261.75 1281.25 1259.5 1278.75 2834353 21177846/15/2011 1278 1278 1250 1254.25 3639073 24723166/16/2011 1255.25 1263.25 1246.5 1257.75 3263670 25577246/17/2011 1258 1271.5 1252.75 1260.25 2335210 25723716/20/2011 1259.25 1269.5 1250.5 1268 1675608 25401736/21/2011 1267.5 1287 1266 1282.25 2075568 25310716/22/2011 1282 1288 1273.75 1274 1872931 25240366/23/2011 1274.25 1275 1251.25 1271.25 3316080 25487656/24/2011 1271.75 1280.25 1255.5 1258.25 2499136 25755966/27/2011 1259.25 1274.25 1251.25 1270.5 2000732 25365796/28/2011 1271.25 1289.25 1265.75 1288.75 1913881 25074156/29/2011 1287.75 1299.75 1285.75 1298.5 2489063 24846336/30/2011 1298.25 1311.75 1296.5 1309.75 1875270 2490419

7/1/2011 1309.75 1330.75 1306.75 1329 1955127 24682307/5/2011 1328.25 1332 1322.5 1331 1729821 24850367/6/2011 1330.25 1335 1320.75 1330 1819425 24865687/7/2011 1330.25 1347 1330 1346 1678156 25024717/8/2011 1345.75 1348.75 1323.5 1336 2253551 2525676

7/11/2011 1333.5 1333.75 1306 1312.75 2432258 25581387/12/2011 1312.25 1317.5 1289.5 1305 2888474 25895287/13/2011 1305 1322 1301.5 1306.5 2315093 25791017/14/2011 1306.5 1317.5 1296.25 1301 2877782 25758067/15/2011 1302 1309.75 1294.75 1309.25 2298613 25479857/18/2011 1308.75 1309 1285.5 1294.75 2168734 25655077/19/2011 1295.75 1318.5 1294.5 1315.5 2098625 25858607/20/2011 1315.5 1324 1313.5 1315.5 1637321 25946807/21/2011 1316 1337.75 1309.25 1336.75 2311771 25753957/22/2011 1335.5 1342 1327 1335.25 1478170 25595907/25/2011 1324.25 1334.5 1316.25 1327.75 1640963 25674177/26/2011 1327.75 1334 1319.75 1320.5 1698186 25582927/27/2011 1320.25 1322.75 1292.25 1293.25 2535676 26229897/28/2011 1293.5 1307.25 1289.5 1291 2338767 26336487/29/2011 1292 1295 1272.75 1282.75 2889931 2689055

8/1/2011 1300.25 1304 1264.5 1274 3020191 27177028/2/2011 1274 1279.25 1241 1241.5 3293753 27861368/3/2011 1242.5 1252.25 1224.5 1248.75 3815275 28379548/4/2011 1248.5 1258.5 1187.5 1193 5039775 29602888/5/2011 1193.5 1213.25 1157.5 1192 6160540 29389848/8/2011 1161.5 1183.25 1103.75 1105.5 6173318 32425408/9/2011 1107.25 1169.75 1071.25 1166 6285917 3337317

8/10/2011 1165.25 1173 1108 1117.75 4925051 34467828/11/2011 1117.25 1178.25 1097.25 1162.75 4482222 33850128/12/2011 1162.5 1181 1141 1171 2720118 33717498/15/2011 1174 1196 1170.5 1192.75 2002026 33678398/16/2011 1190.75 1195.75 1171.75 1186.5 2556621 31694388/17/2011 1186 1201 1175.75 1184.25 2112805 32036788/18/2011 1183.75 1184.25 1122.5 1137.75 3809916 33638798/19/2011 1138 1147.5 1111.75 1118.25 3583223 33903078/22/2011 1116.25 1140.75 1105.5 1117.5 2714560 33960688/23/2011 1117.75 1155 1112.75 1152.75 3338118 33718178/24/2011 1153.25 1171 1136.75 1166.25 2616278 33954618/25/2011 1165.75 1182.75 1147.25 1151.75 3198280 34290118/26/2011 1151.25 1174 1127 1170.25 3053686 34523138/29/2011 1169.75 1203 1166.5 1202.25 1832857 34712518/30/2011 1202.25 1213 1187.75 1199 2576230 34678468/31/2011 1198.5 1224 1195.5 1212 3159833 3451099

9/1/2011 1212 1222.75 1195 1195.5 2656315 34359209/2/2011 1195.25 1197.5 1162.75 1163.5 2427798 35404599/5/2011 1159.25 1161 1132.5 1139.75 361512 35404599/6/2011 1137.25 1161 1130.25 1158.75 3522564 35944539/7/2011 1158.75 1194 1158 1193.25 2595150 34159579/8/2011 1193.75 1198 1176.25 1180 1326103 8310919/9/2011 1180 1188.25 1141 1152.25 3165441 1392352

9/12/2011 1136 1158 1123.5 1157.25 3612118 18879349/13/2011 1156.75 1170.5 1139 1165.25 3694565 24070379/14/2011 1165.5 1196.25 1148 1182.25 3552069 27543839/15/2011 1182.25 1205.5 1175.75 1204.25 3024123 28835749/16/2011 1203 1214.5 1194.75 1211.75 2661191 29307349/19/2011 1199.25 1203.75 1181.5 1197.75 2446620 28970539/20/2011 1196.75 1214.5 1185.25 1196 2614553 29189609/21/2011 1196.75 1203.75 1155 1155.75 3254771 29361129/22/2011 1155.25 1159 1106.75 1123.5 4741905 30814779/23/2011 1124.25 1138.5 1102 1129.75 3365634 30672119/26/2011 1122 1159 1115 1158.5 3089036 30627949/27/2011 1157.5 1190 1155 1169.5 3258954 29741689/28/2011 1169 1181.75 1143.5 1148.75 2802438 29761569/29/2011 1148.25 1170.75 1133.5 1156.25 2975702 29560189/30/2011 1157.25 1159.75 1121.5 1126 2980938 300636710/3/2011 1123 1133.5 1085.25 1086.25 3504183 311574010/4/2011 1087.5 1119.75 1068 1113.5 4190407 313960910/5/2011 1114.5 1141.25 1106.5 1135 3039981 311588110/6/2011 1135 1160.5 1129 1157.5 2903759 311640310/7/2011 1157.25 1173.75 1144.75 1155 2865466 3053178

### 1157.75 1192.25 1156.5 1191 1776333 2994500### 1190.5 1194.75 1180.75 1189.5 1953734 3007577### 1187.5 1216 1180.75 1198.25 2558741 3007577### 1198.5 1200 1195.5 1196 59459 2983719

Date Open High Low Close Vol OI

### 1028.25 1037.25 1027.5 1032 1060806 2319235 Date Return### 1031.5 1034.75 1023.5 1029.25 1519381 2316144 ### (0.27%)### 1033.25 1050.25 1033.25 1048.25 1968023 2349352 ### 1.85% ### 1048 1053.75 1041 1050.25 1839117 2356006 ### 0.19% ### 1050.75 1056 1038 1042.5 2017636 2362701 ### (0.74%)### 1042.5 1057.25 1036.75 1051.5 1559384 2367497 ### 0.86% ### 1050.25 1059.5 1042.5 1050 1991670 2372653 ### (0.14%)### 1049.5 1059 1033 1038.5 2418114 2412330 ### (1.10%)### 1037 1052.75 1030.75 1051.25 2184400 2427259 ### 1.23% ### 1051 1055.75 1032 1037.5 2348150 2428355 ### (1.31%)### 1037.5 1049 1021.75 1027 2339507 2447660 ### (1.01%)### 1026.75 1030.25 1017.5 1021 2460527 2440271 ### (0.58%)### 1021.5 1023.5 998.5 999 2843071 2515492 ### (2.15%)### 999.25 1024.5 997.75 1022 2298367 2485726 ### 2.30% ### 1021.75 1023.25 990 993.5 3376612 2477634 ### (2.79%)

11/2/2009 991.75 1010 986.5 999.5 2783823 2458795 11/2/2009 0.60% 11/3/2009 999.75 1004.5 987 1002.25 2315679 2483205 11/3/2009 0.28% 11/4/2009 1002.25 1019 1001.25 1007.5 2360779 2510493 11/4/2009 0.52% 11/5/2009 1007.25 1024.5 999.5 1023.75 1949016 2512147 11/5/2009 1.61% 11/6/2009 1023.75 1030 1014 1026.75 2082058 2525359 11/6/2009 0.29% 11/9/2009 1026.25 1052.5 1025.5 1052.25 1833896 2503851 11/9/2009 2.48%

### 1052 1055 1045.5 1052.5 1810118 2501068 ### 0.02% ### 1052.25 1063.75 1051.75 1056.75 1800698 2503906 ### 0.40% ### 1056.5 1061.5 1043 1047.75 2020189 2521044 ### (0.85%)### 1048 1056.5 1043.25 1052 1478254 2546421 ### 0.41% ### 1052.5 1072.75 1051.5 1066.75 1992105 2556245 ### 1.40% ### 1066.75 1069.5 1060.5 1068 1517083 2546124 ### 0.12% ### 1068 1071.25 1061.25 1069 1480000 2537795 ### 0.09% ### 1069 1070 1047 1054.75 2047058 2551165 ### (1.33%)### 1054.5 1055.5 1044 1050.5 1451811 2564267 ### (0.40%)### 1050.25 1072 1049.5 1064.25 1545064 2567414 ### 1.31% ### 1064 1067.5 1055.5 1063.5 1584089 2568594 ### (0.07%)### 1063.75 1071.75 1062.75 1069.5 1078340 2574456 ### 0.56% ### 1069.25 1071.75 1027.5 1050 1704981 2599910 ### (1.82%)### 1052 1058.5 1045 1055.25 2016591 2577784 ### 0.50%

12/1/2009 1055.25 1072.25 1052.75 1069 1835688 2580449 12/1/2009 1.30% 12/2/2009 1068.75 1076 1064.75 1068.5 1669060 2589015 12/2/2009 (0.05%)12/3/2009 1068.25 1077.5 1058 1058.5 2054949 2572315 12/3/2009 (0.94%)12/4/2009 1058.25 1079.5 1055.75 1068.5 2928961 2608336 12/4/2009 0.94% 12/7/2009 1068.5 1071.25 1059.25 1064.25 1572214 2568259 12/7/2009 (0.40%)12/8/2009 1065.25 1068 1048.25 1050.5 2251962 2494080 12/8/2009 (1.29%)12/9/2009 1050.5 1058 1045.5 1056 2239481 2351765 12/9/2009 0.52%

### 1055.25 1066.5 1052.75 1062.25 1104971 908695 ### 0.59% ### 1062.75 1070.5 1061.25 1068.25 1710243 1315764 ### 0.56% ### 1067.5 1078 1064.75 1073.5 1720435 1779529 ### 0.49% ### 1073.25 1076 1065.25 1069 1804825 2112600 ### (0.42%)### 1068.75 1077 1068 1070.75 1666850 2277192 ### 0.16% ### 1070.25 1071.5 1055.75 1059.25 2014202 2333026 ### (1.07%)### 1059.25 1067.75 1053.5 1062.7 1732758 2332548 ### 0.33% ### 1062.75 1078.25 1061.5 1073.25 1163792 2359131 ### 0.99% ### 1072.75 1080.75 1072.25 1078.5 930910 2374664 ### 0.49% ### 1078.75 1085 1076.25 1080.5 727761 2376350 ### 0.19% ### 1080.25 1087.5 1079.75 1087 248984 2394340 ### 0.60% ### 1087 1091.25 1082.5 1088 474293 2392937 ### 0.09% ### 1087.75 1093.5 1085.5 1086.75 579344 2397986 ### (0.11%)### 1086.25 1087.5 1078 1087 596890 2393240 ### 0.02% ### 1086.75 1090.25 1074.75 1075.75 638861 2392916 ### (1.03%)

1/4/2010 1078.75 1094.75 1078.25 1093.75 1291254 2440458 1/4/2010 1.67% 1/5/2010 1093.5 1098 1090 1097.25 1378593 2402850 1/5/2010 0.32% 1/6/2010 1097 1100.5 1092.25 1098 1259921 2396493 1/6/2010 0.07% 1/7/2010 1098 1103.75 1092 1102.5 1567025 2406352 1/7/2010 0.41% 1/8/2010 1102.25 1106.75 1096 1106.5 1527666 2420194 1/8/2010 0.36%

1/11/2010 1106.5 1113 1102.75 1107.5 1456443 2427453 1/11/2010 0.09% 1/12/2010 1106.25 1108 1092.75 1099 2117166 2439036 1/12/2010 (0.77%)

1/13/2010 1099.25 1110.25 1094.25 1106.5 2131642 2475322 1/13/2010 0.68% 1/14/2010 1106.5 1112 1103.25 1110.25 1355731 2473392 1/14/2010 0.34% 1/15/2010 1111.75 1112.25 1092.5 1097.25 2059496 2454453 1/15/2010 (1.17%)1/19/2010 1096.75 1112 1091.25 1110.75 1927993 2472206 1/19/2010 1.23% 1/20/2010 1110 1111.5 1090.25 1099 2391710 2482172 1/20/2010 (1.06%)1/21/2010 1099.5 1104.25 1075.25 1076 3438955 2536905 1/21/2010 (2.09%)1/22/2010 1074.75 1080.75 1051.25 1056 3544446 2615680 1/22/2010 (1.86%)1/25/2010 1059 1068 1054.75 1057.5 2080292 2589797 1/25/2010 0.14% 1/26/2010 1059 1065 1046 1052.25 2449263 2620022 1/26/2010 (0.50%)1/27/2010 1052.5 1061.25 1043.5 1059.5 2634603 2625603 1/27/2010 0.69% 1/28/2010 1059.5 1068.5 1039.25 1044.25 3052088 2613642 1/28/2010 (1.44%)1/29/2010 1046 1058.25 1031.5 1035.5 3068079 2638822 1/29/2010 (0.84%)

2/1/2010 1035.5 1051.5 1033 1051.25 1896011 2619197 2/1/2010 1.52% 2/2/2010 1051 1066.5 1047 1062.25 2104398 2693741 2/2/2010 1.05% 2/3/2010 1062 1065.25 1055.5 1061.5 1883815 2684501 2/3/2010 (0.07%)2/4/2010 1061.25 1063.25 1024.25 1026.75 3302110 2733407 2/4/2010 (3.27%)2/5/2010 1026.75 1030 1005.75 1024.75 3983950 2752149 2/5/2010 (0.19%)2/8/2010 1024.75 1033.5 1018 1021 2061320 2795324 2/8/2010 (0.37%)2/9/2010 1020.5 1042 1019 1031.25 3014475 2810384 2/9/2010 1.00%

2/10/2010 1031.5 1037.5 1021.25 1028.25 2204772 2813255 2/10/2010 (0.29%)2/11/2010 1028.5 1043 1022.5 1041.5 2262497 2826210 2/11/2010 1.29% 2/12/2010 1041.25 1044.75 1025 1044 2747993 2837310 2/12/2010 0.24% 2/16/2010 1041.5 1059 1038.5 1058.25 1761523 2795293 2/16/2010 1.36% 2/17/2010 1058.25 1065 1057.5 1064.5 1669958 2803301 2/17/2010 0.59% 2/18/2010 1064.75 1071.75 1058 1070.5 1832739 2804518 2/18/2010 0.56% 2/19/2010 1070.5 1076 1057.5 1071.25 2096659 2749477 2/19/2010 0.07% 2/22/2010 1071.25 1077.75 1068.5 1072.5 1317880 2759021 2/22/2010 0.12% 2/23/2010 1072 1077.75 1055.25 1062.25 2224420 2796410 2/23/2010 (0.96%)2/24/2010 1061.75 1070.5 1057.5 1068.5 1882885 2805411 2/24/2010 0.59% 2/25/2010 1068 1068.5 1049.5 1067.25 2697610 2830299 2/25/2010 (0.12%)2/26/2010 1067 1072.75 1061.25 1068.5 1944020 2819976 2/26/2010 0.12%

3/1/2010 1068.5 1080.5 1069.25 1079.5 1615001 2816032 3/1/2010 1.03% 3/2/2010 1079.25 1087.75 1077.75 1082.5 1502795 2775511 3/2/2010 0.28% 3/3/2010 1082.5 1090 1080 1083.5 1583814 2800091 3/3/2010 0.09% 3/4/2010 1083.25 1088.5 1079 1087.25 1490362 2751134 3/4/2010 0.35% 3/5/2010 1087 1103.75 1086.5 1101.5 1869074 2784520 3/5/2010 1.31% 3/8/2010 1101.5 1105.5 1100 1102 1179723 2767605 3/8/2010 0.05% 3/9/2010 1102.25 1110.25 1096.5 1105.5 1759468 2732028 3/9/2010 0.32%

3/10/2010 1105 1113 1102.75 1110.75 2112662 2587207 3/10/2010 0.47% 3/11/2010 1110.25 1116 1103.75 1115.75 1467691 1109345 3/11/2010 0.45% 3/12/2010 1115.75 1121.75 1111.75 1116.25 1866265 1481062 3/12/2010 0.04% 3/15/2010 1115.75 1116.25 1106.25 1115.5 1693881 1788753 3/15/2010 (0.07%)3/16/2010 1115.5 1125.5 1114.25 1124.5 2010549 2086456 3/16/2010 0.81% 3/17/2010 1124.5 1135.25 1123.75 1130.75 2038542 2229054 3/17/2010 0.56% 3/18/2010 1130.5 1133.75 1126 1131 1819642 2326816 3/18/2010 0.02% 3/19/2010 1131 1134.75 1120 1126 2165925 2364398 3/19/2010 (0.44%)3/22/2010 1123 1133 1116.5 1131.75 1915804 2366678 3/22/2010 0.51% 3/23/2010 1131.5 1140.25 1128.75 1139.25 1856410 2343536 3/23/2010 0.66% 3/24/2010 1139 1139.75 1130.75 1134.25 1992386 2364585 3/24/2010 (0.44%)3/25/2010 1134 1146.25 1130 1132.5 2355473 2390362 3/25/2010 (0.15%)3/26/2010 1132 1139.5 1126.25 1133.25 2161399 2406679 3/26/2010 0.07% 3/29/2010 1134.5 1140.75 1133.75 1138.5 1454311 2422677 3/29/2010 0.46% 3/30/2010 1138.25 1143.5 1134 1139.25 1642976 2411847 3/30/2010 0.07% 3/31/2010 1138.75 1140.25 1131 1135 2109287 2379962 3/31/2010 (0.37%)

4/1/2010 1136.75 1147.25 1135.5 1143.5 1942722 2403558 4/1/2010 0.75% 4/5/2010 1148.5 1153.5 1144.25 1152.75 1025888 2397813 4/5/2010 0.81% 4/6/2010 1152.75 1157.75 1147 1155.5 1395387 2398237 4/6/2010 0.24% 4/7/2010 1155.5 1156 1143 1148.75 2171684 2364972 4/7/2010 (0.58%)4/8/2010 1148.25 1154.75 1140.75 1153.5 1910628 2389116 4/8/2010 0.41% 4/9/2010 1153.25 1162.75 1152.75 1162.25 1450628 2383750 4/9/2010 0.76%

4/12/2010 1164.5 1168.25 1160.5 1162.25 1253624 2379785 4/12/2010 0.00% 4/13/2010 1162 1165.5 1154.75 1162.75 1553891 2412904 4/13/2010 0.04% 4/14/2010 1165.25 1177 1164.25 1176.25 1727998 2440787 4/14/2010 1.16% 4/15/2010 1176.25 1180.25 1170.75 1178.25 1732427 2448263 4/15/2010 0.17% 4/16/2010 1177.75 1178.25 1152.5 1160 3584806 2465049 4/16/2010 (1.55%)

4/19/2010 1155.75 1166.25 1149.5 1165.25 2480009 2463376 4/19/2010 0.45% 4/20/2010 1165.5 1175.5 1163.75 1175.25 1534819 2474254 4/20/2010 0.86% 4/21/2010 1174.75 1179.25 1164.75 1170.25 2168277 2483833 4/21/2010 (0.43%)4/22/2010 1168.25 1176.75 1156 1171.5 2668931 2523968 4/22/2010 0.11% 4/23/2010 1171 1183.5 1167.25 1182 1856101 2505018 4/23/2010 0.90% 4/26/2010 1182 1186.5 1177.25 1178 1624454 2504414 4/26/2010 (0.34%)4/27/2010 1177.5 1179.75 1147.25 1150.75 3590721 2551935 4/27/2010 (2.31%)4/28/2010 1151.25 1161.75 1146.5 1159.75 2857714 2534454 4/28/2010 0.78% 4/29/2010 1159.75 1176 1157.75 1175 1980761 2512231 4/29/2010 1.31% 4/30/2010 1175.25 1177.75 1152.5 1153.25 2897399 2506087 4/30/2010 (1.85%)

5/3/2010 1154.25 1171.75 1153.5 1168.25 1797282 2546897 5/3/2010 1.30% 5/4/2010 1168 1169.5 1134 1142.25 3553338 2537709 5/4/2010 (2.23%)5/5/2010 1141.75 1144.75 1124.5 1133.75 3057926 2591435 5/5/2010 (0.74%)5/6/2010 1133.5 1138.5 1025.75 1092.25 5675645 2688328 5/6/2010 (3.66%)5/7/2010 1093.5 1105.25 1060.5 1076.75 5013862 2647315 5/7/2010 (1.42%)

5/10/2010 1095 1131.75 1091.25 1126.25 3640288 2646663 5/10/2010 4.60% 5/11/2010 1125.75 1138.75 1110.25 1122 2663633 2686701 5/11/2010 (0.38%)5/12/2010 1121.5 1141 1110.75 1139.5 2109839 2595338 5/12/2010 1.56% 5/13/2010 1138.75 1144.5 1123.5 1126.5 1963587 2576551 5/13/2010 (1.14%)5/14/2010 1125.25 1129.25 1093.5 1105 2979512 2589750 5/14/2010 (1.91%)5/17/2010 1103.5 1110 1082.5 1104.25 3052733 2570497 5/17/2010 (0.07%)5/18/2010 1105.25 1117.25 1085 1088.5 3092769 2584389 5/18/2010 (1.43%)5/19/2010 1087.75 1092.5 1068.5 1079.75 3585852 2607620 5/19/2010 (0.80%)5/20/2010 1079.75 1086.25 1037 1039.75 4378875 2728055 5/20/2010 (3.70%)5/21/2010 1039 1058.5 1021 1054.25 4024607 2604744 5/21/2010 1.39% 5/24/2010 1055.25 1058.5 1039.75 1040.75 2231741 2651323 5/24/2010 (1.28%)5/25/2010 1039 1044.5 1006.5 1042.75 3433912 2656785 5/25/2010 0.19% 5/26/2010 1042.25 1059.25 1030.25 1031 2929237 2692123 5/26/2010 (1.13%)5/27/2010 1029.75 1072.75 1025.25 1070.75 2613372 2645964 5/27/2010 3.86% 5/28/2010 1070 1076.5 1053 1058.25 2368730 2642268 5/28/2010 (1.17%)

6/1/2010 1058.25 1065.75 1038.25 1039.25 2593945 2713752 6/1/2010 (1.80%)6/2/2010 1039 1068 1037 1066.5 2214865 2694730 6/2/2010 2.62% 6/3/2010 1066.75 1075 1060.5 1073.25 2033254 2657930 6/3/2010 0.63% 6/4/2010 1073.75 1077.5 1029 1035.75 3211493 2750025 6/4/2010 (3.49%)6/7/2010 1035.75 1040.5 1016.75 1017.75 2390986 2771249 6/7/2010 (1.74%)6/8/2010 1018 1033 1011 1029 3401030 2736063 6/8/2010 1.11% 6/9/2010 1028.75 1047.5 1021 1025.25 2970468 2561641 6/9/2010 (0.36%)

6/10/2010 1024.75 1057.5 1021.75 1053.5 1928796 1116027 6/10/2010 2.76% 6/11/2010 1056.75 1062.25 1044.25 1059 2234724 1435415 6/11/2010 0.52% 6/14/2010 1061.5 1075.75 1058.25 1060.25 2411842 1874813 6/14/2010 0.12% 6/15/2010 1059.75 1085.5 1058.25 1083.25 2694530 2199082 6/15/2010 2.17% 6/16/2010 1083.25 1088.75 1074 1083.5 2522048 2425040 6/16/2010 0.02% 6/17/2010 1084 1091.5 1074.75 1085.75 2715158 2508842 6/17/2010 0.21% 6/18/2010 1085.5 1090.75 1082.25 1084.25 1631682 2533026 6/18/2010 (0.14%)6/21/2010 1090 1103.5 1077.25 1084.5 2162081 2571881 6/21/2010 0.02% 6/22/2010 1084.5 1091 1063.5 1064.5 2286571 2601822 6/22/2010 (1.84%)6/23/2010 1064.75 1071.75 1054.25 1061.5 2235636 2592658 6/23/2010 (0.28%)6/24/2010 1060.5 1065 1040.5 1044.5 2551855 2657033 6/24/2010 (1.60%)6/25/2010 1044.25 1053.5 1036.75 1048.75 2454671 2687382 6/25/2010 0.41% 6/28/2010 1048.25 1053.75 1040.5 1045 1686899 2679807 6/28/2010 (0.36%)6/29/2010 1044.5 1048.75 1004.25 1009.25 3109449 2742306 6/29/2010 (3.42%)6/30/2010 1009.25 1018.5 997 1000.5 2622061 2762700 6/30/2010 (0.87%)

7/1/2010 1000.5 1003.75 980 995.75 3354900 2828763 7/1/2010 (0.47%)7/2/2010 996.25 1006.5 984.75 988.25 2135335 2825204 7/2/2010 (0.75%)7/6/2010 985.75 1012.5 976.75 998.25 2431642 2863819 7/6/2010 1.01% 7/7/2010 998 1033.75 990.25 1033.25 2556140 2834603 7/7/2010 3.51% 7/8/2010 1032.75 1042.5 1028 1041 2112208 2775844 7/8/2010 0.75% 7/9/2010 1040.75 1049 1037.25 1046.5 1421814 2747468 7/9/2010 0.53%

7/12/2010 1046.5 1051.25 1039.5 1050.5 1382638 2782993 7/12/2010 0.38% 7/13/2010 1050 1070 1047 1063.75 2001017 2800205 7/13/2010 1.26% 7/14/2010 1069 1073 1057.5 1065 1940692 2770538 7/14/2010 0.12% 7/15/2010 1065.25 1073.25 1050.25 1064.5 2416608 2773274 7/15/2010 (0.05%)7/16/2010 1064.5 1068.75 1033 1037 2503643 2756881 7/16/2010 (2.58%)7/19/2010 1035.75 1045 1031 1037.75 1760879 2785149 7/19/2010 0.07% 7/20/2010 1037.25 1054.75 1024.75 1054 2275816 2796302 7/20/2010 1.57%

7/21/2010 1053.5 1061.75 1035 1038 2440958 2791287 7/21/2010 (1.52%)7/22/2010 1037.25 1068.5 1035.25 1061.75 2178892 2775061 7/22/2010 2.29% 7/23/2010 1061.25 1075.5 1058 1074.5 2091081 2770900 7/23/2010 1.20% 7/26/2010 1074.5 1085.75 1071 1083.5 1543914 2745169 7/26/2010 0.84% 7/27/2010 1083.25 1092.75 1080 1085 1822245 2758792 7/27/2010 0.14% 7/28/2010 1084.5 1089.75 1073.25 1076 1641500 2746022 7/28/2010 (0.83%)7/29/2010 1076.5 1087 1062.75 1071 2250104 2761379 7/29/2010 (0.46%)7/30/2010 1070.25 1077.5 1057.5 1072.25 2133582 2709258 7/30/2010 0.12%

8/2/2010 1078.5 1098.25 1075.75 1095.75 1610959 2730487 8/2/2010 2.19% 8/3/2010 1095.75 1096.75 1087.25 1092.25 1493524 2716644 8/3/2010 (0.32%)8/4/2010 1092 1100 1086.25 1098.5 1591800 2699304 8/4/2010 0.57% 8/5/2010 1098.75 1101.75 1089.5 1097.5 1340145 2710663 8/5/2010 (0.09%)8/6/2010 1097.5 1101 1077.75 1093.5 2177376 2713680 8/6/2010 (0.36%)8/9/2010 1093.5 1100.75 1090.5 1099.5 998906 2717711 8/9/2010 0.55%

8/10/2010 1099.25 1099.75 1082.25 1093.75 2029717 2716708 8/10/2010 (0.52%)8/11/2010 1093.25 1093.75 1058.5 1059 2638258 2747067 8/11/2010 (3.18%)8/12/2010 1059 1061.5 1044.5 1053.25 2180112 2746057 8/12/2010 (0.54%)8/13/2010 1053.5 1063 1046.5 1050 1479393 2726008 8/13/2010 (0.31%)8/16/2010 1051.5 1055.5 1040.25 1051 1612131 2765067 8/16/2010 0.10% 8/17/2010 1051.25 1072.5 1048.5 1063 1779783 2787274 8/17/2010 1.14% 8/18/2010 1063 1072.5 1057.75 1060.75 1814778 2752050 8/18/2010 (0.21%)8/19/2010 1061 1069 1042.5 1045.25 2433838 2815775 8/19/2010 (1.46%)8/20/2010 1044.75 1050 1035.75 1044.25 1806978 2792043 8/20/2010 (0.10%)8/23/2010 1044.25 1054.25 1038.25 1039.5 1567358 2822978 8/23/2010 (0.45%)8/24/2010 1039.5 1039.75 1018 1023.75 2466756 2879240 8/24/2010 (1.52%)8/25/2010 1024 1031.75 1011 1028.5 2478780 2880019 8/25/2010 0.46% 8/26/2010 1029.25 1035.75 1017 1018.75 1994211 2917867 8/26/2010 (0.95%)8/27/2010 1017.75 1038.5 1011.25 1037.75 2541324 2919615 8/27/2010 1.87% 8/30/2010 1037.75 1046.75 1018.5 1019 1506592 2930569 8/30/2010 (1.81%)8/31/2010 1019 1028.25 1011.5 1022.25 2516451 2964455 8/31/2010 0.32%

9/1/2010 1025.75 1056.5 1024.75 1055.75 2355074 2901867 9/1/2010 3.28% 9/2/2010 1055.5 1064.5 1050.5 1063.5 1601762 2875870 9/2/2010 0.73% 9/3/2010 1063.75 1078.5 1060.25 1077.5 2017072 2850566 9/3/2010 1.32% 9/7/2010 1078 1081.25 1063.75 1065.25 1751617 2803647 9/7/2010 (1.14%)9/8/2010 1065.5 1077 1060.25 1073.25 2001331 2602936 9/8/2010 0.75% 9/9/2010 1073 1085.75 1070.75 1076.25 1133889 904547 9/9/2010 0.28%

9/10/2010 1076.5 1084.5 1074.25 1083.75 1530259 1367848 9/10/2010 0.70% 9/13/2010 1088.75 1097.75 1086.75 1095 1998170 1793046 9/13/2010 1.04% 9/14/2010 1094.5 1101.25 1089 1094.5 2304737 2127504 9/14/2010 (0.05%)9/15/2010 1094.25 1100.25 1087.75 1099.5 2083703 2372341 9/15/2010 0.46% 9/16/2010 1099.75 1102.75 1091.5 1101.25 1866295 2453572 9/16/2010 0.16% 9/17/2010 1101.5 1111.5 1095.75 1098.5 1933484 2436902 9/17/2010 (0.25%)9/20/2010 1097.25 1119 1095.75 1115.25 1789965 2432315 9/20/2010 1.52% 9/21/2010 1115.25 1122.75 1109 1113.5 2098867 2416981 9/21/2010 (0.16%)9/22/2010 1113.75 1119 1105.25 1108.5 1957234 2514158 9/22/2010 (0.45%)9/23/2010 1108.75 1113.25 1096 1099.25 2190002 2515427 9/23/2010 (0.83%)9/24/2010 1099.25 1123.25 1097.25 1122 1846093 2561544 9/24/2010 2.07% 9/27/2010 1122.75 1128.5 1115.75 1116.5 1343049 2557181 9/27/2010 (0.49%)9/28/2010 1116.75 1124.75 1106 1120.5 2305031 2566485 9/28/2010 0.36% 9/29/2010 1120.5 1125.5 1114.25 1119.75 1860633 2582239 9/29/2010 (0.07%)9/30/2010 1119.75 1132.25 1110 1115.5 2825790 2536476 9/30/2010 (0.38%)10/1/2010 1115.5 1125.25 1113.25 1121 2065971 2546627 10/1/2010 0.49% 10/4/2010 1121 1122.75 1105.75 1113.5 1849807 2569442 10/4/2010 (0.67%)10/5/2010 1113.5 1137.5 1111.5 1133.5 2203058 2638930 10/5/2010 1.80% 10/6/2010 1133.75 1138.75 1129.75 1134.5 1720880 2623535 10/6/2010 0.09% 10/7/2010 1134.5 1142.5 1126 1135.25 1988730 2625005 10/7/2010 0.07% 10/8/2010 1135.25 1142.75 1124.25 1139.25 1969643 2627827 10/8/2010 0.35%

### 1140.25 1143.75 1136.5 1141 1005696 2640554 ### 0.15% ### 1141.25 1147.75 1130.5 1143.25 1941433 2646446 ### 0.20% ### 1144 1159.75 1143 1153 2163266 2723060 ### 0.85% ### 1153.5 1159.5 1141.25 1152.25 2400204 2711338 ### (0.07%)### 1152.75 1158.75 1141.75 1153.75 2644031 2675728 ### 0.13% ### 1153 1161 1143.5 1157 1465558 2688392 ### 0.28% ### 1157.5 1158.25 1134.25 1142.5 3065772 2681018 ### (1.25%)### 1142.75 1158.75 1139.25 1153.5 2289137 2707547 ### 0.96%

### 1153.5 1165 1146 1154.5 2408540 2689222 ### 0.09% ### 1154 1160.25 1152 1159.45 1204824 2671093 ### 0.43% ### 1159.5 1171.75 1159.25 1161.5 1752840 2679509 ### 0.18% ### 1160.75 1163 1152.75 1161.5 1743843 2686156 ### 0.00% ### 1162 1165 1146.5 1157.5 2246880 2690222 ### (0.34%)### 1157.25 1166.25 1152.25 1158 2014979 2668557 ### 0.04% ### 1158 1161.25 1150.75 1158.5 1751544 2671762 ### 0.04%

11/1/2010 1158.5 1171.5 1152.5 1161.75 2032082 2670465 11/1/2010 0.28% 11/2/2010 1161.5 1172.25 1159.5 1171.5 1573659 2694988 11/2/2010 0.84% 11/3/2010 1171.5 1176.75 1158.25 1176 2361808 2683550 11/3/2010 0.38% 11/4/2010 1176.25 1197.5 1174 1197.25 2301698 2748912 11/4/2010 1.81% 11/5/2010 1197 1203.25 1191.25 1200.75 2301698 2735053 11/5/2010 0.29% 11/8/2010 1199.25 1201 1193.5 1198.75 1542756 2809190 11/8/2010 (0.17%)11/9/2010 1198 1203.5 1185 1189.75 2324133 2778956 11/9/2010 (0.75%)

### 1189.25 1195.75 1180.5 1192.75 2483583 2797314 ### 0.25% ### 1192.25 1192.5 1180.75 1189.75 1775665 2806244 ### (0.25%)### 1189.25 1190.5 1170.25 1174.25 2766115 2812753 ### (1.30%)### 1174.25 1184.5 1171.25 1174.5 2071297 2827290 ### 0.02% ### 1174 1174 1149.75 1153.5 3168883 2831177 ### (1.79%)### 1154.5 1160.75 1152 1156.25 2021219 2779026 ### 0.24% ### 1156.5 1177.75 1155.75 1176.5 2067180 2808354 ### 1.75% ### 1176.25 1178.75 1166.25 1177 1733603 2794626 ### 0.04% ### 1181.5 1184.75 1161.25 1176.75 2212329 2773910 ### (0.02%)### 1175.75 1176.5 1153.5 1157 2456997 2778957 ### (1.68%)### 1156.75 1176.25 1154.25 1175.25 1821455 2782893 ### 1.58% ### 1177.75 1179.25 1161.25 1162 963332 2773708 ### (1.13%)### 1162 1172.5 1151 1165.25 2491942 2771661 ### 0.28% ### 1165.25 1167 1151.75 1158.25 3089404 2792037 ### (0.60%)

12/1/2010 1158.25 1186.5 1155 1183.25 2346276 2827756 12/1/2010 2.16% 12/2/2010 1182.75 1202 1180.75 1201.5 2037342 2845193 12/2/2010 1.54% 12/3/2010 1201.5 1206 1191.75 1202.25 1890658 2855263 12/3/2010 0.06% 12/6/2010 1202.25 1205.5 1195 1200.75 1326050 2803507 12/6/2010 (0.12%)12/7/2010 1201.5 1213.75 1197.75 1202 2449523 2743781 12/7/2010 0.10% 12/8/2010 1201.5 1208 1196 1207.5 2142544 2518842 12/8/2010 0.46% 12/9/2010 1207 1216.75 1205 1211.75 1073405 871881 12/9/2010 0.35%

### 1211.5 1220 1210.5 1219.75 1450096 1279636 ### 0.66% ### 1219 1225.75 1215.75 1220 1824807 1594522 ### 0.02% ### 1219.75 1226 1216.5 1220.5 2008662 1991813 ### 0.04% ### 1220.5 1223.25 1212.5 1215.75 2114241 2245053 ### (0.39%)### 1215.75 1223.5 1211.25 1222.25 1738245 2397297 ### 0.53% ### 1222.25 1224.75 1218.25 1222.25 1340620 2392696 ### 0.00% ### 1223.75 1229.5 1217.75 1225 1145804 2422001 ### 0.22% ### 1224.75 1235 1224.5 1234.5 943293 2433418 ### 0.78% ### 1233.75 1238.75 1232.75 1238.25 664450 2433411 ### 0.30% ### 1238.25 1239.5 1233 1236.75 594048 2437477 ### (0.12%)### 1233.25 1238 1229.25 1237 587701 2458879 ### 0.02% ### 1237.25 1240.25 1235.25 1237.75 553798 2477060 ### 0.06% ### 1237.75 1242.25 1237 1239.5 588441 2475165 ### 0.14% ### 1239.5 1241.25 1235.25 1238.25 713588 2469321 ### (0.10%)### 1238 1241.5 1233.25 1236.75 667046 2478376 ### (0.12%)

1/3/2011 1236.75 1256.25 1236.75 1249 1591034 2500721 1/3/2011 0.99% 1/4/2011 1248.5 1253.75 1242 1249 1778621 2495528 1/4/2011 0.00% 1/5/2011 1249.25 1257.5 1239.5 1255.5 1797267 2510775 1/5/2011 0.52% 1/6/2011 1255.5 1260.75 1250 1254 1614397 2495267 1/6/2011 (0.12%)1/7/2011 1253.5 1257.75 1241.5 1251.25 2175596 2505895 1/7/2011 (0.22%)

1/10/2011 1250 1251.75 1241.75 1249.25 1876415 2507962 1/10/2011 (0.16%)1/11/2011 1249.25 1257.5 1247.75 1254.25 1662412 2527804 1/11/2011 0.40% 1/12/2011 1253.75 1268 1253 1267.25 1604117 2557791 1/12/2011 1.04% 1/13/2011 1267 1268.25 1260 1265 1671242 2531081 1/13/2011 (0.18%)1/14/2011 1265 1273.75 1258 1273.25 1631162 2527355 1/14/2011 0.65% 1/18/2011 1269.25 1278.75 1266.5 1278.5 1673094 2563543 1/18/2011 0.41% 1/19/2011 1278.25 1280 1258.75 1262.25 2322868 2586802 1/19/2011 (1.27%)1/20/2011 1263 1265.25 1251.25 1260 2534106 2614326 1/20/2011 (0.18%)1/21/2011 1259.75 1271.75 1257 1263.5 2012431 2594871 1/21/2011 0.28% 1/24/2011 1263.25 1273.5 1261.5 1272.25 1635794 2634978 1/24/2011 0.69%

1/25/2011 1272.25 1275.5 1260.75 1271.25 2360267 2635938 1/25/2011 (0.08%)1/26/2011 1271 1280.5 1269.75 1277.25 1609255 2646887 1/26/2011 0.47% 1/27/2011 1277.5 1282 1273 1279.5 1554851 2634255 1/27/2011 0.18% 1/28/2011 1279 1283.25 1254.25 1255.25 3238629 2694729 1/28/2011 (1.90%)1/31/2011 1255.25 1267.5 1246 1266.25 2314420 2666224 1/31/2011 0.88%

2/1/2011 1266.25 1289.75 1265 1286.5 2089240 2690241 2/1/2011 1.60% 2/2/2011 1286 1289.25 1281.75 1283.75 1396167 2714368 2/2/2011 (0.21%)2/3/2011 1284 1289.5 1275.25 1287 1828391 2692805 2/3/2011 0.25% 2/4/2011 1287 1292.25 1281.75 1291 1585618 2706640 2/4/2011 0.31% 2/7/2011 1291 1303.75 1289.75 1299.5 1501112 2730158 2/7/2011 0.66% 2/8/2011 1298.75 1306 1296.75 1305.5 1453914 2754984 2/8/2011 0.46% 2/9/2011 1305.25 1305.75 1295.5 1303 1825859 2780883 2/9/2011 (0.19%)

2/10/2011 1302.25 1304.25 1292.25 1302.5 2055532 2799077 2/10/2011 (0.04%)2/11/2011 1302 1312.5 1293.75 1311 1881031 2799214 2/11/2011 0.65% 2/14/2011 1311 1315 1308.25 1311.5 1171814 2809512 2/14/2011 0.04% 2/15/2011 1311.75 1313 1306 1310 1457415 2814250 2/15/2011 (0.11%)2/16/2011 1310 1319.75 1309.5 1316.75 1801087 2845287 2/16/2011 0.52% 2/17/2011 1316.75 1323.75 1312.25 1321.5 1677669 2849648 2/17/2011 0.36% 2/18/2011 1321.5 1326.75 1318.75 1326.25 1516091 2854700 2/18/2011 0.36% 2/22/2011 1326 1326.25 1294 1298.25 3257861 2898256 2/22/2011 (2.11%)2/23/2011 1297.75 1304.25 1281.25 1289.25 3075485 2910101 2/23/2011 (0.69%)2/24/2011 1289.5 1294.5 1276.25 1286.5 2903883 2875305 2/24/2011 (0.21%)2/25/2011 1286.25 1303.75 1285.25 1302.5 1827557 2871412 2/25/2011 1.24% 2/28/2011 1302 1312.75 1296.75 1309.75 1941581 2852603 2/28/2011 0.56%

3/1/2011 1309.75 1320.25 1284.5 1284.75 3054741 2898347 3/1/2011 (1.91%)3/2/2011 1285 1297.5 1280 1289.5 2680941 2915339 3/2/2011 0.37% 3/3/2011 1290 1315.75 1288.75 1313.5 2361733 2887515 3/3/2011 1.86% 3/4/2011 1313.5 1318.25 1295 1304 2944659 2894251 3/4/2011 (0.72%)3/7/2011 1304 1311 1286.5 1292.75 2702700 2897776 3/7/2011 (0.86%)3/8/2011 1292.5 1309.5 1289.75 1303.75 2209200 2798341 3/8/2011 0.85% 3/9/2011 1303.5 1308.75 1295.25 1299.25 2196273 2614534 3/9/2011 (0.35%)

3/10/2011 1299.75 1301.25 1276.5 1278.25 1844627 945951 3/10/2011 (1.62%)3/11/2011 1277.75 1292.5 1267.25 1290 2185696 1310121 3/11/2011 0.92% 3/14/2011 1287.25 1289.5 1269.75 1279.25 2788791 1639297 3/14/2011 (0.83%)3/15/2011 1279.25 1282 1239.75 1264 3992352 2134386 3/15/2011 (1.19%)3/16/2011 1263.5 1272.25 1232 1242.75 4540281 2518402 3/16/2011 (1.68%)3/17/2011 1243.5 1263.25 1230 1257.5 2979478 2586929 3/17/2011 1.19% 3/18/2011 1257.25 1276.25 1250.25 1263 2342198 2565944 3/18/2011 0.44% 3/21/2011 1265 1285 1263.5 1281.75 1488232 2553822 3/21/2011 1.48% 3/22/2011 1281.25 1285.25 1276.25 1277 1441789 2568898 3/22/2011 (0.37%)3/23/2011 1276.5 1284.75 1267.75 1280.75 1939892 2587522 3/23/2011 0.29% 3/24/2011 1280.75 1295.5 1278 1294 1833298 2603534 3/24/2011 1.03% 3/25/2011 1293.25 1303.25 1292.75 1298.75 1651563 2598402 3/25/2011 0.37% 3/28/2011 1298 1304 1290.75 1291 1290490 2631428 3/28/2011 (0.60%)3/29/2011 1291.5 1306.5 1289 1305.25 1549071 2650848 3/29/2011 1.10% 3/30/2011 1305 1316.5 1303.5 1312.75 1407633 2638334 3/30/2011 0.57% 3/31/2011 1313.25 1314.5 1309.25 1309.75 1521964 2647743 3/31/2011 (0.23%)

4/1/2011 1309.75 1322.5 1309.25 1316.5 1660075 2635255 4/1/2011 0.52% 4/4/2011 1315.75 1321.5 1313.25 1318 1273974 2646233 4/4/2011 0.11% 4/5/2011 1318.5 1323 1311.75 1315.5 1558287 2675137 4/5/2011 (0.19%)4/6/2011 1315.75 1325.25 1314.75 1317.75 1656416 2665569 4/6/2011 0.17% 4/7/2011 1317.75 1324 1311 1317.25 2180272 2671718 4/7/2011 (0.04%)4/8/2011 1317.25 1324.5 1307.5 1312.5 1858868 2688459 4/8/2011 (0.36%)

4/11/2011 1314.5 1319 1305.75 1308.25 1527470 2695169 4/11/2011 (0.32%)4/12/2011 1309 1309.25 1294 1297 2078928 2685024 4/12/2011 (0.86%)4/13/2011 1297 1307.5 1293.75 1297.5 1919662 2667514 4/13/2011 0.04% 4/14/2011 1298 1302 1287 1299 2027796 2690414 4/14/2011 0.12% 4/15/2011 1299.25 1308 1294.5 1307.5 1644200 2683332 4/15/2011 0.65% 4/18/2011 1307 1307.5 1279 1289.75 2255340 2687640 4/18/2011 (1.36%)4/19/2011 1289.75 1298.25 1282.75 1297.25 1528995 2693117 4/19/2011 0.58% 4/20/2011 1297.5 1319.25 1297.25 1317 1871971 2694507 4/20/2011 1.52% 4/21/2011 1317.25 1326.5 1316.75 1319.75 1276072 2681863 4/21/2011 0.21% 4/25/2011 1319.25 1324 1316 1319.5 599322 2693363 4/25/2011 (0.02%)4/26/2011 1319.5 1335 1316.75 1329.75 1386038 2726416 4/26/2011 0.78% 4/27/2011 1329.75 1343 1329 1339.75 1386295 2751861 4/27/2011 0.75%

4/28/2011 1340.25 1347.25 1335.5 1343.75 1706910 2743397 4/28/2011 0.30% 4/29/2011 1343.75 1352.5 1341.5 1348.5 1272342 2742628 4/29/2011 0.35%

5/2/2011 1352 1362.25 1343.5 1346.5 1707040 2742024 5/2/2011 (0.15%)5/3/2011 1346.5 1347.25 1334.5 1340.75 1674060 2794195 5/3/2011 (0.43%)5/4/2011 1340.5 1343.75 1326.25 1331.75 2382666 2790443 5/4/2011 (0.67%)5/5/2011 1332 1337.5 1314 1323.75 2915006 2758798 5/5/2011 (0.60%)5/6/2011 1323 1340.5 1320.5 1323.25 2673077 2751590 5/6/2011 (0.04%)5/9/2011 1326 1335 1323.25 1331.5 1666599 2677123 5/9/2011 0.62%

5/10/2011 1331.25 1345.25 1327.75 1342.5 1571216 2680756 5/10/2011 0.83% 5/11/2011 1342.5 1347 1321.75 1327.5 2190906 2664963 5/11/2011 (1.12%)5/12/2011 1328 1337.5 1317.5 1336.25 2254909 2647161 5/12/2011 0.66% 5/13/2011 1336 1341.25 1319.25 1322.75 2235430 2650027 5/13/2011 (1.01%)5/16/2011 1320.75 1330 1313.5 1314.25 2177046 2666484 5/16/2011 (0.64%)5/17/2011 1314 1320.75 1304.75 1314.25 2292146 2688008 5/17/2011 0.00% 5/18/2011 1315 1329.25 1313.25 1327.25 1612220 2695103 5/18/2011 0.99% 5/19/2011 1327 1334.25 1323.25 1330.5 1825276 2706744 5/19/2011 0.24% 5/20/2011 1330.25 1332.75 1315.75 1316.5 2248408 2719462 5/20/2011 (1.05%)5/23/2011 1314.75 1315.75 1299.5 1304 2054242 2752316 5/23/2011 (0.95%)5/24/2011 1303.5 1311.25 1300.5 1302.25 1860601 2761199 5/24/2011 (0.13%)5/25/2011 1301.75 1313.25 1291 1305.25 2100699 2780614 5/25/2011 0.23% 5/26/2011 1305.25 1316.25 1301.25 1315.25 2286732 2762061 5/26/2011 0.77% 5/27/2011 1315.25 1322.5 1313.25 1318.75 1393298 2775088 5/27/2011 0.27% 5/31/2011 1319.75 1334.5 1317 1332.75 1927228 2815719 5/31/2011 1.06%

6/1/2011 1332.75 1336.5 1300 1300.75 2681845 2835132 6/1/2011 (2.40%)6/2/2011 1302 1306.5 1293 1301.25 2433178 2815208 6/2/2011 0.04% 6/3/2011 1301 1302.25 1283.25 1285 2677734 2930588 6/3/2011 (1.25%)6/6/2011 1287.5 1287.75 1272 1273.75 2185300 2889057 6/6/2011 (0.88%)6/7/2011 1274 1284.25 1271.25 1273.5 2069553 2803593 6/7/2011 (0.02%)6/8/2011 1273.75 1276.5 1265 1265.75 2695851 2671828 6/8/2011 (0.61%)6/9/2011 1267.25 1282.75 1264 1276.25 978448 808832 6/9/2011 0.83%

6/10/2011 1276.5 1277.75 1256 1258 2355546 1201982 6/10/2011 (1.43%)6/13/2011 1259.25 1266 1253.75 1260.5 2517553 1584108 6/13/2011 0.20% 6/14/2011 1261.75 1281.25 1259.5 1278.75 2834353 2117784 6/14/2011 1.45% 6/15/2011 1278 1278 1250 1254.25 3639073 2472316 6/15/2011 (1.92%)6/16/2011 1255.25 1263.25 1246.5 1257.75 3263670 2557724 6/16/2011 0.28% 6/17/2011 1258 1271.5 1252.75 1260.25 2335210 2572371 6/17/2011 0.20% 6/20/2011 1259.25 1269.5 1250.5 1268 1675608 2540173 6/20/2011 0.61% 6/21/2011 1267.5 1287 1266 1282.25 2075568 2531071 6/21/2011 1.12% 6/22/2011 1282 1288 1273.75 1274 1872931 2524036 6/22/2011 (0.64%)6/23/2011 1274.25 1275 1251.25 1271.25 3316080 2548765 6/23/2011 (0.22%)6/24/2011 1271.75 1280.25 1255.5 1258.25 2499136 2575596 6/24/2011 (1.02%)6/27/2011 1259.25 1274.25 1251.25 1270.5 2000732 2536579 6/27/2011 0.97% 6/28/2011 1271.25 1289.25 1265.75 1288.75 1913881 2507415 6/28/2011 1.44% 6/29/2011 1287.75 1299.75 1285.75 1298.5 2489063 2484633 6/29/2011 0.76% 6/30/2011 1298.25 1311.75 1296.5 1309.75 1875270 2490419 6/30/2011 0.87%

7/1/2011 1309.75 1330.75 1306.75 1329 1955127 2468230 7/1/2011 1.47% 7/5/2011 1328.25 1332 1322.5 1331 1729821 2485036 7/5/2011 0.15% 7/6/2011 1330.25 1335 1320.75 1330 1819425 2486568 7/6/2011 (0.08%)7/7/2011 1330.25 1347 1330 1346 1678156 2502471 7/7/2011 1.20% 7/8/2011 1345.75 1348.75 1323.5 1336 2253551 2525676 7/8/2011 (0.74%)

7/11/2011 1333.5 1333.75 1306 1312.75 2432258 2558138 7/11/2011 (1.74%)7/12/2011 1312.25 1317.5 1289.5 1305 2888474 2589528 7/12/2011 (0.59%)7/13/2011 1305 1322 1301.5 1306.5 2315093 2579101 7/13/2011 0.11% 7/14/2011 1306.5 1317.5 1296.25 1301 2877782 2575806 7/14/2011 (0.42%)7/15/2011 1302 1309.75 1294.75 1309.25 2298613 2547985 7/15/2011 0.63% 7/18/2011 1308.75 1309 1285.5 1294.75 2168734 2565507 7/18/2011 (1.11%)7/19/2011 1295.75 1318.5 1294.5 1315.5 2098625 2585860 7/19/2011 1.60% 7/20/2011 1315.5 1324 1313.5 1315.5 1637321 2594680 7/20/2011 0.00% 7/21/2011 1316 1337.75 1309.25 1336.75 2311771 2575395 7/21/2011 1.62% 7/22/2011 1335.5 1342 1327 1335.25 1478170 2559590 7/22/2011 (0.11%)7/25/2011 1324.25 1334.5 1316.25 1327.75 1640963 2567417 7/25/2011 (0.56%)7/26/2011 1327.75 1334 1319.75 1320.5 1698186 2558292 7/26/2011 (0.55%)7/27/2011 1320.25 1322.75 1292.25 1293.25 2535676 2622989 7/27/2011 (2.06%)7/28/2011 1293.5 1307.25 1289.5 1291 2338767 2633648 7/28/2011 (0.17%)7/29/2011 1292 1295 1272.75 1282.75 2889931 2689055 7/29/2011 (0.64%)

8/1/2011 1300.25 1304 1264.5 1274 3020191 2717702 8/1/2011 (0.68%)8/2/2011 1274 1279.25 1241 1241.5 3293753 2786136 8/2/2011 (2.55%)8/3/2011 1242.5 1252.25 1224.5 1248.75 3815275 2837954 8/3/2011 0.58% 8/4/2011 1248.5 1258.5 1187.5 1193 5039775 2960288 8/4/2011 (4.46%)8/5/2011 1193.5 1213.25 1157.5 1192 6160540 2938984 8/5/2011 (0.08%)8/8/2011 1161.5 1183.25 1103.75 1105.5 6173318 3242540 8/8/2011 (7.26%)8/9/2011 1107.25 1169.75 1071.25 1166 6285917 3337317 8/9/2011 5.47%

8/10/2011 1165.25 1173 1108 1117.75 4925051 3446782 8/10/2011 (4.14%)8/11/2011 1117.25 1178.25 1097.25 1162.75 4482222 3385012 8/11/2011 4.03% 8/12/2011 1162.5 1181 1141 1171 2720118 3371749 8/12/2011 0.71% 8/15/2011 1174 1196 1170.5 1192.75 2002026 3367839 8/15/2011 1.86% 8/16/2011 1190.75 1195.75 1171.75 1186.5 2556621 3169438 8/16/2011 (0.52%)8/17/2011 1186 1201 1175.75 1184.25 2112805 3203678 8/17/2011 (0.19%)8/18/2011 1183.75 1184.25 1122.5 1137.75 3809916 3363879 8/18/2011 (3.93%)8/19/2011 1138 1147.5 1111.75 1118.25 3583223 3390307 8/19/2011 (1.71%)8/22/2011 1116.25 1140.75 1105.5 1117.5 2714560 3396068 8/22/2011 (0.07%)8/23/2011 1117.75 1155 1112.75 1152.75 3338118 3371817 8/23/2011 3.15% 8/24/2011 1153.25 1171 1136.75 1166.25 2616278 3395461 8/24/2011 1.17% 8/25/2011 1165.75 1182.75 1147.25 1151.75 3198280 3429011 8/25/2011 (1.24%)8/26/2011 1151.25 1174 1127 1170.25 3053686 3452313 8/26/2011 1.61% 8/29/2011 1169.75 1203 1166.5 1202.25 1832857 3471251 8/29/2011 2.73% 8/30/2011 1202.25 1213 1187.75 1199 2576230 3467846 8/30/2011 (0.27%)8/31/2011 1198.5 1224 1195.5 1212 3159833 3451099 8/31/2011 1.08%

9/1/2011 1212 1222.75 1195 1195.5 2656315 3435920 9/1/2011 (1.36%)9/2/2011 1195.25 1197.5 1162.75 1163.5 2427798 3540459 9/2/2011 (2.68%)9/5/2011 1159.25 1161 1132.5 1139.75 361512 3540459 9/5/2011 (2.04%)9/6/2011 1137.25 1161 1130.25 1158.75 3522564 3594453 9/6/2011 1.67% 9/7/2011 1158.75 1194 1158 1193.25 2595150 3415957 9/7/2011 2.98% 9/8/2011 1193.75 1198 1176.25 1180 1326103 831091 9/8/2011 (1.11%)9/9/2011 1180 1188.25 1141 1152.25 3165441 1392352 9/9/2011 (2.35%)

9/12/2011 1136 1158 1123.5 1157.25 3612118 1887934 9/12/2011 0.43% 9/13/2011 1156.75 1170.5 1139 1165.25 3694565 2407037 9/13/2011 0.69% 9/14/2011 1165.5 1196.25 1148 1182.25 3552069 2754383 9/14/2011 1.46% 9/15/2011 1182.25 1205.5 1175.75 1204.25 3024123 2883574 9/15/2011 1.86% 9/16/2011 1203 1214.5 1194.75 1211.75 2661191 2930734 9/16/2011 0.62% 9/19/2011 1199.25 1203.75 1181.5 1197.75 2446620 2897053 9/19/2011 (1.16%)9/20/2011 1196.75 1214.5 1185.25 1196 2614553 2918960 9/20/2011 (0.15%)9/21/2011 1196.75 1203.75 1155 1155.75 3254771 2936112 9/21/2011 (3.37%)9/22/2011 1155.25 1159 1106.75 1123.5 4741905 3081477 9/22/2011 (2.79%)9/23/2011 1124.25 1138.5 1102 1129.75 3365634 3067211 9/23/2011 0.56% 9/26/2011 1122 1159 1115 1158.5 3089036 3062794 9/26/2011 2.54% 9/27/2011 1157.5 1190 1155 1169.5 3258954 2974168 9/27/2011 0.95% 9/28/2011 1169 1181.75 1143.5 1148.75 2802438 2976156 9/28/2011 (1.77%)9/29/2011 1148.25 1170.75 1133.5 1156.25 2975702 2956018 9/29/2011 0.65% 9/30/2011 1157.25 1159.75 1121.5 1126 2980938 3006367 9/30/2011 (2.62%)10/3/2011 1123 1133.5 1085.25 1086.25 3504183 3115740 10/3/2011 (3.53%)10/4/2011 1087.5 1119.75 1068 1113.5 4190407 3139609 10/4/2011 2.51% 10/5/2011 1114.5 1141.25 1106.5 1135 3039981 3115881 10/5/2011 1.93% 10/6/2011 1135 1160.5 1129 1157.5 2903759 3116403 10/6/2011 1.98% 10/7/2011 1157.25 1173.75 1144.75 1155 2865466 3053178 10/7/2011 (0.22%)

### 1157.75 1192.25 1156.5 1191 1776333 2994500 ### 3.12% ### 1190.5 1194.75 1180.75 1189.5 1953734 3007577 ### (0.13%)### 1187.5 1216 1180.75 1198.25 2558741 3007577 ### 0.74% ### 1198.5 1200 1195.5 1196 59459 2983719 ### (0.19%)

Date Open High Low Close Vol OI

### 1028.25 1037.25 1027.5 1032 1060806 2319235 Date Return StDev Annualized### 1031.5 1034.75 1023.5 1029.25 1519381 2316144 ### (0.27%)### 1033.25 1050.25 1033.25 1048.25 1968023 2349352 ### 1.85% ### 1048 1053.75 1041 1050.25 1839117 2356006 ### 0.19% ### 1050.75 1056 1038 1042.5 2017636 2362701 ### (0.74%)### 1042.5 1057.25 1036.75 1051.5 1559384 2367497 ### 0.86% ### 1050.25 1059.5 1042.5 1050 1991670 2372653 ### (0.14%)### 1049.5 1059 1033 1038.5 2418114 2412330 ### (1.10%)### 1037 1052.75 1030.75 1051.25 2184400 2427259 ### 1.23% ### 1051 1055.75 1032 1037.5 2348150 2428355 ### (1.31%)### 1037.5 1049 1021.75 1027 2339507 2447660 ### (1.01%)### 1026.75 1030.25 1017.5 1021 2460527 2440271 ### (0.58%)### 1021.5 1023.5 998.5 999 2843071 2515492 ### (2.15%)### 999.25 1024.5 997.75 1022 2298367 2485726 ### 2.30% ### 1021.75 1023.25 990 993.5 3376612 2477634 ### (2.79%)

11/2/2009 991.75 1010 986.5 999.5 2783823 2458795 11/2/2009 0.60% 11/3/2009 999.75 1004.5 987 1002.25 2315679 2483205 11/3/2009 0.28% 11/4/2009 1002.25 1019 1001.25 1007.5 2360779 2510493 11/4/2009 0.52% 11/5/2009 1007.25 1024.5 999.5 1023.75 1949016 2512147 11/5/2009 1.61% 11/6/2009 1023.75 1030 1014 1026.75 2082058 2525359 11/6/2009 0.29% 11/9/2009 1026.25 1052.5 1025.5 1052.25 1833896 2503851 11/9/2009 2.48% 1.41% 22.79%

### 1052 1055 1045.5 1052.5 1810118 2501068 ### 0.02% 1.41% 22.75% ### 1052.25 1063.75 1051.75 1056.75 1800698 2503906 ### 0.40% 1.35% 21.82% ### 1056.5 1061.5 1043 1047.75 2020189 2521044 ### (0.85%) 1.36% 22.05% ### 1048 1056.5 1043.25 1052 1478254 2546421 ### 0.41% 1.35% 21.92% ### 1052.5 1072.75 1051.5 1066.75 1992105 2556245 ### 1.40% 1.38% 22.27% ### 1066.75 1069.5 1060.5 1068 1517083 2546124 ### 0.12% 1.38% 22.26% ### 1068 1071.25 1061.25 1069 1480000 2537795 ### 0.09% 1.35% 21.79% ### 1069 1070 1047 1054.75 2047058 2551165 ### (1.33%) 1.36% 22.02% ### 1054.5 1055.5 1044 1050.5 1451811 2564267 ### (0.40%) 1.33% 21.50% ### 1050.25 1072 1049.5 1064.25 1545064 2567414 ### 1.31% 1.33% 21.53% ### 1064 1067.5 1055.5 1063.5 1584089 2568594 ### (0.07%) 1.32% 21.36% ### 1063.75 1071.75 1062.75 1069.5 1078340 2574456 ### 0.56% 1.20% 19.38% ### 1069.25 1071.75 1027.5 1050 1704981 2599910 ### (1.82%) 1.20% 19.40% ### 1052 1058.5 1045 1055.25 2016591 2577784 ### 0.50% 0.98% 15.88%

12/1/2009 1055.25 1072.25 1052.75 1069 1835688 2580449 12/1/2009 1.30% 1.00% 16.26% 12/2/2009 1068.75 1076 1064.75 1068.5 1669060 2589015 12/2/2009 (0.05%) 1.01% 16.32% 12/3/2009 1068.25 1077.5 1058 1058.5 2054949 2572315 12/3/2009 (0.94%) 1.05% 16.92% 12/4/2009 1058.25 1079.5 1055.75 1068.5 2928961 2608336 12/4/2009 0.94% 1.01% 16.34% 12/7/2009 1068.5 1071.25 1059.25 1064.25 1572214 2568259 12/7/2009 (0.40%) 1.02% 16.48% 12/8/2009 1065.25 1068 1048.25 1050.5 2251962 2494080 12/8/2009 (1.29%) 0.91% 14.80% 12/9/2009 1050.5 1058 1045.5 1056 2239481 2351765 12/9/2009 0.52% 0.92% 14.92%

### 1055.25 1066.5 1052.75 1062.25 1104971 908695 ### 0.59% 0.93% 15.01% ### 1062.75 1070.5 1061.25 1068.25 1710243 1315764 ### 0.56% 0.91% 14.73% ### 1067.5 1078 1064.75 1073.5 1720435 1779529 ### 0.49% 0.91% 14.76% ### 1073.25 1076 1065.25 1069 1804825 2112600 ### (0.42%) 0.87% 14.01% ### 1068.75 1077 1068 1070.75 1666850 2277192 ### 0.16% 0.87% 14.01% ### 1070.25 1071.5 1055.75 1059.25 2014202 2333026 ### (1.07%) 0.90% 14.55% ### 1059.25 1067.75 1053.5 1062.7 1732758 2332548 ### 0.33% 0.85% 13.74% ### 1062.75 1078.25 1061.5 1073.25 1163792 2359131 ### 0.99% 0.87% 14.04% ### 1072.75 1080.75 1072.25 1078.5 930910 2374664 ### 0.49% 0.83% 13.37% ### 1078.75 1085 1076.25 1080.5 727761 2376350 ### 0.19% 0.83% 13.37% ### 1080.25 1087.5 1079.75 1087 248984 2394340 ### 0.60% 0.83% 13.39% ### 1087 1091.25 1082.5 1088 474293 2392937 ### 0.09% 0.69% 11.25% ### 1087.75 1093.5 1085.5 1086.75 579344 2397986 ### (0.11%) 0.69% 11.23% ### 1086.25 1087.5 1078 1087 596890 2393240 ### 0.02% 0.64% 10.33% ### 1086.75 1090.25 1074.75 1075.75 638861 2392916 ### (1.03%) 0.69% 11.10%

1/4/2010 1078.75 1094.75 1078.25 1093.75 1291254 2440458 1/4/2010 1.67% 0.74% 11.93% 1/5/2010 1093.5 1098 1090 1097.25 1378593 2402850 1/5/2010 0.32% 0.72% 11.58% 1/6/2010 1097 1100.5 1092.25 1098 1259921 2396493 1/6/2010 0.07% 0.70% 11.41% 1/7/2010 1098 1103.75 1092 1102.5 1567025 2406352 1/7/2010 0.41% 0.62% 10.00% 1/8/2010 1102.25 1106.75 1096 1106.5 1527666 2420194 1/8/2010 0.36% 0.61% 9.95%

1/11/2010 1106.5 1113 1102.75 1107.5 1456443 2427453 1/11/2010 0.09% 0.61% 9.87% 1/12/2010 1106.25 1108 1092.75 1099 2117166 2439036 1/12/2010 (0.77%) 0.64% 10.38%

1/13/2010 1099.25 1110.25 1094.25 1106.5 2131642 2475322 1/13/2010 0.68% 0.65% 10.49% 1/14/2010 1106.5 1112 1103.25 1110.25 1355731 2473392 1/14/2010 0.34% 0.63% 10.27% 1/15/2010 1111.75 1112.25 1092.5 1097.25 2059496 2454453 1/15/2010 (1.17%) 0.70% 11.40% 1/19/2010 1096.75 1112 1091.25 1110.75 1927993 2472206 1/19/2010 1.23% 0.69% 11.10% 1/20/2010 1110 1111.5 1090.25 1099 2391710 2482172 1/20/2010 (1.06%) 0.74% 12.04% 1/21/2010 1099.5 1104.25 1075.25 1076 3438955 2536905 1/21/2010 (2.09%) 0.87% 14.14% 1/22/2010 1074.75 1080.75 1051.25 1056 3544446 2615680 1/22/2010 (1.86%) 0.96% 15.54% 1/25/2010 1059 1068 1054.75 1057.5 2080292 2589797 1/25/2010 0.14% 0.96% 15.53% 1/26/2010 1059 1065 1046 1052.25 2449263 2620022 1/26/2010 (0.50%) 0.95% 15.35% 1/27/2010 1052.5 1061.25 1043.5 1059.5 2634603 2625603 1/27/2010 0.69% 0.97% 15.63% 1/28/2010 1059.5 1068.5 1039.25 1044.25 3052088 2613642 1/28/2010 (1.44%) 1.01% 16.34% 1/29/2010 1046 1058.25 1031.5 1035.5 3068079 2638822 1/29/2010 (0.84%) 1.02% 16.47%

2/1/2010 1035.5 1051.5 1033 1051.25 1896011 2619197 2/1/2010 1.52% 1.07% 17.34% 2/2/2010 1051 1066.5 1047 1062.25 2104398 2693741 2/2/2010 1.05% 1.02% 16.59% 2/3/2010 1062 1065.25 1055.5 1061.5 1883815 2684501 2/3/2010 (0.07%) 1.02% 16.50% 2/4/2010 1061.25 1063.25 1024.25 1026.75 3302110 2733407 2/4/2010 (3.27%) 1.23% 19.93% 2/5/2010 1026.75 1030 1005.75 1024.75 3983950 2752149 2/5/2010 (0.19%) 1.22% 19.74% 2/8/2010 1024.75 1033.5 1018 1021 2061320 2795324 2/8/2010 (0.37%) 1.21% 19.55% 2/9/2010 1020.5 1042 1019 1031.25 3014475 2810384 2/9/2010 1.00% 1.24% 20.14%

2/10/2010 1031.5 1037.5 1021.25 1028.25 2204772 2813255 2/10/2010 (0.29%) 1.24% 20.07% 2/11/2010 1028.5 1043 1022.5 1041.5 2262497 2826210 2/11/2010 1.29% 1.27% 20.61% 2/12/2010 1041.25 1044.75 1025 1044 2747993 2837310 2/12/2010 0.24% 1.27% 20.57% 2/16/2010 1041.5 1059 1038.5 1058.25 1761523 2795293 2/16/2010 1.36% 1.31% 21.12% 2/17/2010 1058.25 1065 1057.5 1064.5 1669958 2803301 2/17/2010 0.59% 1.28% 20.66% 2/18/2010 1064.75 1071.75 1058 1070.5 1832739 2804518 2/18/2010 0.56% 1.27% 20.57% 2/19/2010 1070.5 1076 1057.5 1071.25 2096659 2749477 2/19/2010 0.07% 1.18% 19.16% 2/22/2010 1071.25 1077.75 1068.5 1072.5 1317880 2759021 2/22/2010 0.12% 1.10% 17.82% 2/23/2010 1072 1077.75 1055.25 1062.25 2224420 2796410 2/23/2010 (0.96%) 1.13% 18.21% 2/24/2010 1061.75 1070.5 1057.5 1068.5 1882885 2805411 2/24/2010 0.59% 1.12% 18.20% 2/25/2010 1068 1068.5 1049.5 1067.25 2697610 2830299 2/25/2010 (0.12%) 1.12% 18.07% 2/26/2010 1067 1072.75 1061.25 1068.5 1944020 2819976 2/26/2010 0.12% 1.06% 17.16%

3/1/2010 1068.5 1080.5 1069.25 1079.5 1615001 2816032 3/1/2010 1.03% 1.05% 17.06% 3/2/2010 1079.25 1087.75 1077.75 1082.5 1502795 2775511 3/2/2010 0.28% 1.01% 16.32% 3/3/2010 1082.5 1090 1080 1083.5 1583814 2800091 3/3/2010 0.09% 0.99% 15.96% 3/4/2010 1083.25 1088.5 1079 1087.25 1490362 2751134 3/4/2010 0.35% 0.99% 15.97% 3/5/2010 1087 1103.75 1086.5 1101.5 1869074 2784520 3/5/2010 1.31% 0.62% 10.03% 3/8/2010 1101.5 1105.5 1100 1102 1179723 2767605 3/8/2010 0.05% 0.61% 9.89% 3/9/2010 1102.25 1110.25 1096.5 1105.5 1759468 2732028 3/9/2010 0.32% 0.59% 9.49%

3/10/2010 1105 1113 1102.75 1110.75 2112662 2587207 3/10/2010 0.47% 0.57% 9.22% 3/11/2010 1110.25 1116 1103.75 1115.75 1467691 1109345 3/11/2010 0.45% 0.55% 8.86% 3/12/2010 1115.75 1121.75 1111.75 1116.25 1866265 1481062 3/12/2010 0.04% 0.51% 8.29% 3/15/2010 1115.75 1116.25 1106.25 1115.5 1693881 1788753 3/15/2010 (0.07%) 0.52% 8.42% 3/16/2010 1115.5 1125.5 1114.25 1124.5 2010549 2086456 3/16/2010 0.81% 0.47% 7.68% 3/17/2010 1124.5 1135.25 1123.75 1130.75 2038542 2229054 3/17/2010 0.56% 0.47% 7.67% 3/18/2010 1130.5 1133.75 1126 1131 1819642 2326816 3/18/2010 0.02% 0.47% 7.66% 3/19/2010 1131 1134.75 1120 1126 2165925 2364398 3/19/2010 (0.44%) 0.50% 8.07% 3/22/2010 1123 1133 1116.5 1131.75 1915804 2366678 3/22/2010 0.51% 0.50% 8.10% 3/23/2010 1131.5 1140.25 1128.75 1139.25 1856410 2343536 3/23/2010 0.66% 0.42% 6.73% 3/24/2010 1139 1139.75 1130.75 1134.25 1992386 2364585 3/24/2010 (0.44%) 0.45% 7.24% 3/25/2010 1134 1146.25 1130 1132.5 2355473 2390362 3/25/2010 (0.15%) 0.45% 7.27% 3/26/2010 1132 1139.5 1126.25 1133.25 2161399 2406679 3/26/2010 0.07% 0.45% 7.29% 3/29/2010 1134.5 1140.75 1133.75 1138.5 1454311 2422677 3/29/2010 0.46% 0.42% 6.77% 3/30/2010 1138.25 1143.5 1134 1139.25 1642976 2411847 3/30/2010 0.07% 0.42% 6.81% 3/31/2010 1138.75 1140.25 1131 1135 2109287 2379962 3/31/2010 (0.37%) 0.44% 7.16%

4/1/2010 1136.75 1147.25 1135.5 1143.5 1942722 2403558 4/1/2010 0.75% 0.46% 7.39% 4/5/2010 1148.5 1153.5 1144.25 1152.75 1025888 2397813 4/5/2010 0.81% 0.41% 6.58% 4/6/2010 1152.75 1157.75 1147 1155.5 1395387 2398237 4/6/2010 0.24% 0.40% 6.55% 4/7/2010 1155.5 1156 1143 1148.75 2171684 2364972 4/7/2010 (0.58%) 0.44% 7.18% 4/8/2010 1148.25 1154.75 1140.75 1153.5 1910628 2389116 4/8/2010 0.41% 0.44% 7.15% 4/9/2010 1153.25 1162.75 1152.75 1162.25 1450628 2383750 4/9/2010 0.76% 0.46% 7.39%

4/12/2010 1164.5 1168.25 1160.5 1162.25 1253624 2379785 4/12/2010 0.00% 0.46% 7.40% 4/13/2010 1162 1165.5 1154.75 1162.75 1553891 2412904 4/13/2010 0.04% 0.45% 7.36% 4/14/2010 1165.25 1177 1164.25 1176.25 1727998 2440787 4/14/2010 1.16% 0.48% 7.85% 4/15/2010 1176.25 1180.25 1170.75 1178.25 1732427 2448263 4/15/2010 0.17% 0.48% 7.75% 4/16/2010 1177.75 1178.25 1152.5 1160 3584806 2465049 4/16/2010 (1.55%) 0.62% 10.02%

4/19/2010 1155.75 1166.25 1149.5 1165.25 2480009 2463376 4/19/2010 0.45% 0.61% 9.84% 4/20/2010 1165.5 1175.5 1163.75 1175.25 1534819 2474254 4/20/2010 0.86% 0.62% 10.08% 4/21/2010 1174.75 1179.25 1164.75 1170.25 2168277 2483833 4/21/2010 (0.43%) 0.63% 10.15% 4/22/2010 1168.25 1176.75 1156 1171.5 2668931 2523968 4/22/2010 0.11% 0.61% 9.91% 4/23/2010 1171 1183.5 1167.25 1182 1856101 2505018 4/23/2010 0.90% 0.63% 10.17% 4/26/2010 1182 1186.5 1177.25 1178 1624454 2504414 4/26/2010 (0.34%) 0.64% 10.36% 4/27/2010 1177.5 1179.75 1147.25 1150.75 3590721 2551935 4/27/2010 (2.31%) 0.85% 13.70% 4/28/2010 1151.25 1161.75 1146.5 1159.75 2857714 2534454 4/28/2010 0.78% 0.86% 13.95% 4/29/2010 1159.75 1176 1157.75 1175 1980761 2512231 4/29/2010 1.31% 0.90% 14.50% 4/30/2010 1175.25 1177.75 1152.5 1153.25 2897399 2506087 4/30/2010 (1.85%) 0.99% 16.06%

5/3/2010 1154.25 1171.75 1153.5 1168.25 1797282 2546897 5/3/2010 1.30% 1.02% 16.47% 5/4/2010 1168 1169.5 1134 1142.25 3553338 2537709 5/4/2010 (2.23%) 1.14% 18.43% 5/5/2010 1141.75 1144.75 1124.5 1133.75 3057926 2591435 5/5/2010 (0.74%) 1.14% 18.50% 5/6/2010 1133.5 1138.5 1025.75 1092.25 5675645 2688328 5/6/2010 (3.66%) 1.39% 22.51% 5/7/2010 1093.5 1105.25 1060.5 1076.75 5013862 2647315 5/7/2010 (1.42%) 1.39% 22.52%

5/10/2010 1095 1131.75 1091.25 1126.25 3640288 2646663 5/10/2010 4.60% 1.78% 28.83% 5/11/2010 1125.75 1138.75 1110.25 1122 2663633 2686701 5/11/2010 (0.38%) 1.78% 28.84% 5/12/2010 1121.5 1141 1110.75 1139.5 2109839 2595338 5/12/2010 1.56% 1.80% 29.12% 5/13/2010 1138.75 1144.5 1123.5 1126.5 1963587 2576551 5/13/2010 (1.14%) 1.81% 29.31% 5/14/2010 1125.25 1129.25 1093.5 1105 2979512 2589750 5/14/2010 (1.91%) 1.83% 29.57% 5/17/2010 1103.5 1110 1082.5 1104.25 3052733 2570497 5/17/2010 (0.07%) 1.82% 29.46% 5/18/2010 1105.25 1117.25 1085 1088.5 3092769 2584389 5/18/2010 (1.43%) 1.82% 29.44% 5/19/2010 1087.75 1092.5 1068.5 1079.75 3585852 2607620 5/19/2010 (0.80%) 1.82% 29.48% 5/20/2010 1079.75 1086.25 1037 1039.75 4378875 2728055 5/20/2010 (3.70%) 1.96% 31.74% 5/21/2010 1039 1058.5 1021 1054.25 4024607 2604744 5/21/2010 1.39% 1.98% 32.11% 5/24/2010 1055.25 1058.5 1039.75 1040.75 2231741 2651323 5/24/2010 (1.28%) 1.99% 32.20% 5/25/2010 1039 1044.5 1006.5 1042.75 3433912 2656785 5/25/2010 0.19% 1.95% 31.64% 5/26/2010 1042.25 1059.25 1030.25 1031 2929237 2692123 5/26/2010 (1.13%) 1.94% 31.34% 5/27/2010 1029.75 1072.75 1025.25 1070.75 2613372 2645964 5/27/2010 3.86% 2.14% 34.63% 5/28/2010 1070 1076.5 1053 1058.25 2368730 2642268 5/28/2010 (1.17%) 2.12% 34.33%

6/1/2010 1058.25 1065.75 1038.25 1039.25 2593945 2713752 6/1/2010 (1.80%) 2.10% 34.03% 6/2/2010 1039 1068 1037 1066.5 2214865 2694730 6/2/2010 2.62% 2.18% 35.27% 6/3/2010 1066.75 1075 1060.5 1073.25 2033254 2657930 6/3/2010 0.63% 2.19% 35.39% 6/4/2010 1073.75 1077.5 1029 1035.75 3211493 2750025 6/4/2010 (3.49%) 2.17% 35.17% 6/7/2010 1035.75 1040.5 1016.75 1017.75 2390986 2771249 6/7/2010 (1.74%) 2.18% 35.34% 6/8/2010 1018 1033 1011 1029 3401030 2736063 6/8/2010 1.11% 1.90% 30.68% 6/9/2010 1028.75 1047.5 1021 1025.25 2970468 2561641 6/9/2010 (0.36%) 1.90% 30.68%

6/10/2010 1024.75 1057.5 1021.75 1053.5 1928796 1116027 6/10/2010 2.76% 1.98% 32.02% 6/11/2010 1056.75 1062.25 1044.25 1059 2234724 1435415 6/11/2010 0.52% 1.98% 32.04% 6/14/2010 1061.5 1075.75 1058.25 1060.25 2411842 1874813 6/14/2010 0.12% 1.94% 31.46% 6/15/2010 1059.75 1085.5 1058.25 1083.25 2694530 2199082 6/15/2010 2.17% 2.01% 32.60% 6/16/2010 1083.25 1088.75 1074 1083.5 2522048 2425040 6/16/2010 0.02% 1.99% 32.19% 6/17/2010 1084 1091.5 1074.75 1085.75 2715158 2508842 6/17/2010 0.21% 1.98% 32.05% 6/18/2010 1085.5 1090.75 1082.25 1084.25 1631682 2533026 6/18/2010 (0.14%) 1.77% 28.73% 6/21/2010 1090 1103.5 1077.25 1084.5 2162081 2571881 6/21/2010 0.02% 1.75% 28.38% 6/22/2010 1084.5 1091 1063.5 1064.5 2286571 2601822 6/22/2010 (1.84%) 1.78% 28.85% 6/23/2010 1064.75 1071.75 1054.25 1061.5 2235636 2592658 6/23/2010 (0.28%) 1.78% 28.88% 6/24/2010 1060.5 1065 1040.5 1044.5 2551855 2657033 6/24/2010 (1.60%) 1.80% 29.21% 6/25/2010 1044.25 1053.5 1036.75 1048.75 2454671 2687382 6/25/2010 0.41% 1.58% 25.49% 6/28/2010 1048.25 1053.75 1040.5 1045 1686899 2679807 6/28/2010 (0.36%) 1.56% 25.19% 6/29/2010 1044.5 1048.75 1004.25 1009.25 3109449 2742306 6/29/2010 (3.42%) 1.69% 27.34% 6/30/2010 1009.25 1018.5 997 1000.5 2622061 2762700 6/30/2010 (0.87%) 1.57% 25.33%

7/1/2010 1000.5 1003.75 980 995.75 3354900 2828763 7/1/2010 (0.47%) 1.55% 25.08% 7/2/2010 996.25 1006.5 984.75 988.25 2135335 2825204 7/2/2010 (0.75%) 1.37% 22.15% 7/6/2010 985.75 1012.5 976.75 998.25 2431642 2863819 7/6/2010 1.01% 1.35% 21.80% 7/7/2010 998 1033.75 990.25 1033.25 2556140 2834603 7/7/2010 3.51% 1.55% 25.09% 7/8/2010 1032.75 1042.5 1028 1041 2112208 2775844 7/8/2010 0.75% 1.56% 25.17% 7/9/2010 1040.75 1049 1037.25 1046.5 1421814 2747468 7/9/2010 0.53% 1.43% 23.13%

7/12/2010 1046.5 1051.25 1039.5 1050.5 1382638 2782993 7/12/2010 0.38% 1.43% 23.09% 7/13/2010 1050 1070 1047 1063.75 2001017 2800205 7/13/2010 1.26% 1.46% 23.56% 7/14/2010 1069 1073 1057.5 1065 1940692 2770538 7/14/2010 0.12% 1.37% 22.11% 7/15/2010 1065.25 1073.25 1050.25 1064.5 2416608 2773274 7/15/2010 (0.05%) 1.37% 22.10% 7/16/2010 1064.5 1068.75 1033 1037 2503643 2756881 7/16/2010 (2.58%) 1.47% 23.84% 7/19/2010 1035.75 1045 1031 1037.75 1760879 2785149 7/19/2010 0.07% 1.47% 23.87% 7/20/2010 1037.25 1054.75 1024.75 1054 2275816 2796302 7/20/2010 1.57% 1.53% 24.71%

7/21/2010 1053.5 1061.75 1035 1038 2440958 2791287 7/21/2010 (1.52%) 1.51% 24.43% 7/22/2010 1037.25 1068.5 1035.25 1061.75 2178892 2775061 7/22/2010 2.29% 1.60% 25.91% 7/23/2010 1061.25 1075.5 1058 1074.5 2091081 2770900 7/23/2010 1.20% 1.57% 25.48% 7/26/2010 1074.5 1085.75 1071 1083.5 1543914 2745169 7/26/2010 0.84% 1.58% 25.59% 7/27/2010 1083.25 1092.75 1080 1085 1822245 2758792 7/27/2010 0.14% 1.58% 25.51% 7/28/2010 1084.5 1089.75 1073.25 1076 1641500 2746022 7/28/2010 (0.83%) 1.35% 21.91% 7/29/2010 1076.5 1087 1062.75 1071 2250104 2761379 7/29/2010 (0.46%) 1.34% 21.65% 7/30/2010 1070.25 1077.5 1057.5 1072.25 2133582 2709258 7/30/2010 0.12% 1.32% 21.45%

8/2/2010 1078.5 1098.25 1075.75 1095.75 1610959 2730487 8/2/2010 2.19% 1.36% 21.95% 8/3/2010 1095.75 1096.75 1087.25 1092.25 1493524 2716644 8/3/2010 (0.32%) 1.36% 22.07% 8/4/2010 1092 1100 1086.25 1098.5 1591800 2699304 8/4/2010 0.57% 1.16% 18.80% 8/5/2010 1098.75 1101.75 1089.5 1097.5 1340145 2710663 8/5/2010 (0.09%) 1.16% 18.77% 8/6/2010 1097.5 1101 1077.75 1093.5 2177376 2713680 8/6/2010 (0.36%) 1.17% 18.88% 8/9/2010 1093.5 1100.75 1090.5 1099.5 998906 2717711 8/9/2010 0.55% 1.17% 18.91%

8/10/2010 1099.25 1099.75 1082.25 1093.75 2029717 2716708 8/10/2010 (0.52%) 1.15% 18.68% 8/11/2010 1093.25 1093.75 1058.5 1059 2638258 2747067 8/11/2010 (3.18%) 1.37% 22.21% 8/12/2010 1059 1061.5 1044.5 1053.25 2180112 2746057 8/12/2010 (0.54%) 1.38% 22.30% 8/13/2010 1053.5 1063 1046.5 1050 1479393 2726008 8/13/2010 (0.31%) 1.24% 20.14% 8/16/2010 1051.5 1055.5 1040.25 1051 1612131 2765067 8/16/2010 0.10% 1.24% 20.14% 8/17/2010 1051.25 1072.5 1048.5 1063 1779783 2787274 8/17/2010 1.14% 1.22% 19.76% 8/18/2010 1063 1072.5 1057.75 1060.75 1814778 2752050 8/18/2010 (0.21%) 1.17% 18.88% 8/19/2010 1061 1069 1042.5 1045.25 2433838 2815775 8/19/2010 (1.46%) 1.10% 17.77% 8/20/2010 1044.75 1050 1035.75 1044.25 1806978 2792043 8/20/2010 (0.10%) 1.06% 17.10% 8/23/2010 1044.25 1054.25 1038.25 1039.5 1567358 2822978 8/23/2010 (0.45%) 1.03% 16.72% 8/24/2010 1039.5 1039.75 1018 1023.75 2466756 2879240 8/24/2010 (1.52%) 1.07% 17.31% 8/25/2010 1024 1031.75 1011 1028.5 2478780 2880019 8/25/2010 0.46% 1.07% 17.38% 8/26/2010 1029.25 1035.75 1017 1018.75 1994211 2917867 8/26/2010 (0.95%) 1.09% 17.56% 8/27/2010 1017.75 1038.5 1011.25 1037.75 2541324 2919615 8/27/2010 1.87% 1.18% 19.13% 8/30/2010 1037.75 1046.75 1018.5 1019 1506592 2930569 8/30/2010 (1.81%) 1.10% 17.79% 8/31/2010 1019 1028.25 1011.5 1022.25 2516451 2964455 8/31/2010 0.32% 1.11% 17.96%

9/1/2010 1025.75 1056.5 1024.75 1055.75 2355074 2901867 9/1/2010 3.28% 1.36% 22.03% 9/2/2010 1055.5 1064.5 1050.5 1063.5 1601762 2875870 9/2/2010 0.73% 1.38% 22.28% 9/3/2010 1063.75 1078.5 1060.25 1077.5 2017072 2850566 9/3/2010 1.32% 1.41% 22.88% 9/7/2010 1078 1081.25 1063.75 1065.25 1751617 2803647 9/7/2010 (1.14%) 1.43% 23.07% 9/8/2010 1065.5 1077 1060.25 1073.25 2001331 2602936 9/8/2010 0.75% 1.44% 23.24% 9/9/2010 1073 1085.75 1070.75 1076.25 1133889 904547 9/9/2010 0.28% 1.24% 20.05%

9/10/2010 1076.5 1084.5 1074.25 1083.75 1530259 1367848 9/10/2010 0.70% 1.24% 20.01% 9/13/2010 1088.75 1097.75 1086.75 1095 1998170 1793046 9/13/2010 1.04% 1.25% 20.18% 9/14/2010 1094.5 1101.25 1089 1094.5 2304737 2127504 9/14/2010 (0.05%) 1.25% 20.20% 9/15/2010 1094.25 1100.25 1087.75 1099.5 2083703 2372341 9/15/2010 0.46% 1.23% 19.91% 9/16/2010 1099.75 1102.75 1091.5 1101.25 1866295 2453572 9/16/2010 0.16% 1.23% 19.86% 9/17/2010 1101.5 1111.5 1095.75 1098.5 1933484 2436902 9/17/2010 (0.25%) 1.17% 18.93% 9/20/2010 1097.25 1119 1095.75 1115.25 1789965 2432315 9/20/2010 1.52% 1.20% 19.41% 9/21/2010 1115.25 1122.75 1109 1113.5 2098867 2416981 9/21/2010 (0.16%) 1.19% 19.28% 9/22/2010 1113.75 1119 1105.25 1108.5 1957234 2514158 9/22/2010 (0.45%) 1.12% 18.21% 9/23/2010 1108.75 1113.25 1096 1099.25 2190002 2515427 9/23/2010 (0.83%) 1.16% 18.75% 9/24/2010 1099.25 1123.25 1097.25 1122 1846093 2561544 9/24/2010 2.07% 1.18% 19.07% 9/27/2010 1122.75 1128.5 1115.75 1116.5 1343049 2557181 9/27/2010 (0.49%) 1.15% 18.63% 9/28/2010 1116.75 1124.75 1106 1120.5 2305031 2566485 9/28/2010 0.36% 1.03% 16.68% 9/29/2010 1120.5 1125.5 1114.25 1119.75 1860633 2582239 9/29/2010 (0.07%) 1.04% 16.79% 9/30/2010 1119.75 1132.25 1110 1115.5 2825790 2536476 9/30/2010 (0.38%) 0.81% 13.16% 10/1/2010 1115.5 1125.25 1113.25 1121 2065971 2546627 10/1/2010 0.49% 0.81% 13.08% 10/4/2010 1121 1122.75 1105.75 1113.5 1849807 2569442 10/4/2010 (0.67%) 0.79% 12.85% 10/5/2010 1113.5 1137.5 1111.5 1133.5 2203058 2638930 10/5/2010 1.80% 0.81% 13.13% 10/6/2010 1133.75 1138.75 1129.75 1134.5 1720880 2623535 10/6/2010 0.09% 0.81% 13.04% 10/7/2010 1134.5 1142.5 1126 1135.25 1988730 2625005 10/7/2010 0.07% 0.81% 13.06% 10/8/2010 1135.25 1142.75 1124.25 1139.25 1969643 2627827 10/8/2010 0.35% 0.80% 12.97%

### 1140.25 1143.75 1136.5 1141 1005696 2640554 ### 0.15% 0.78% 12.62% ### 1141.25 1147.75 1130.5 1143.25 1941433 2646446 ### 0.20% 0.78% 12.58% ### 1144 1159.75 1143 1153 2163266 2723060 ### 0.85% 0.79% 12.77% ### 1153.5 1159.5 1141.25 1152.25 2400204 2711338 ### (0.07%) 0.79% 12.81% ### 1152.75 1158.75 1141.75 1153.75 2644031 2675728 ### 0.13% 0.78% 12.69% ### 1153 1161 1143.5 1157 1465558 2688392 ### 0.28% 0.72% 11.73% ### 1157.5 1158.25 1134.25 1142.5 3065772 2681018 ### (1.25%) 0.79% 12.79% ### 1142.75 1158.75 1139.25 1153.5 2289137 2707547 ### 0.96% 0.80% 12.93%

### 1153.5 1165 1146 1154.5 2408540 2689222 ### 0.09% 0.76% 12.33% ### 1154 1160.25 1152 1159.45 1204824 2671093 ### 0.43% 0.63% 10.24% ### 1159.5 1171.75 1159.25 1161.5 1752840 2679509 ### 0.18% 0.61% 9.93% ### 1160.75 1163 1152.75 1161.5 1743843 2686156 ### 0.00% 0.61% 9.93% ### 1162 1165 1146.5 1157.5 2246880 2690222 ### (0.34%) 0.62% 10.08% ### 1157.25 1166.25 1152.25 1158 2014979 2668557 ### 0.04% 0.61% 9.87% ### 1158 1161.25 1150.75 1158.5 1751544 2671762 ### 0.04% 0.61% 9.82%

11/1/2010 1158.5 1171.5 1152.5 1161.75 2032082 2670465 11/1/2010 0.28% 0.57% 9.29% 11/2/2010 1161.5 1172.25 1159.5 1171.5 1573659 2694988 11/2/2010 0.84% 0.46% 7.52% 11/3/2010 1171.5 1176.75 1158.25 1176 2361808 2683550 11/3/2010 0.38% 0.47% 7.55% 11/4/2010 1176.25 1197.5 1174 1197.25 2301698 2748912 11/4/2010 1.81% 0.59% 9.55% 11/5/2010 1197 1203.25 1191.25 1200.75 2301698 2735053 11/5/2010 0.29% 0.59% 9.55% 11/8/2010 1199.25 1201 1193.5 1198.75 1542756 2809190 11/8/2010 (0.17%) 0.60% 9.67% 11/9/2010 1198 1203.5 1185 1189.75 2324133 2778956 11/9/2010 (0.75%) 0.64% 10.33%

### 1189.25 1195.75 1180.5 1192.75 2483583 2797314 ### 0.25% 0.62% 10.03% ### 1192.25 1192.5 1180.75 1189.75 1775665 2806244 ### (0.25%) 0.62% 10.11% ### 1189.25 1190.5 1170.25 1174.25 2766115 2812753 ### (1.30%) 0.71% 11.42% ### 1174.25 1184.5 1171.25 1174.5 2071297 2827290 ### 0.02% 0.70% 11.40% ### 1174 1174 1149.75 1153.5 3168883 2831177 ### (1.79%) 0.76% 12.38% ### 1154.5 1160.75 1152 1156.25 2021219 2779026 ### 0.24% 0.74% 11.91% ### 1156.5 1177.75 1155.75 1176.5 2067180 2808354 ### 1.75% 0.83% 13.47% ### 1176.25 1178.75 1166.25 1177 1733603 2794626 ### 0.04% 0.83% 13.41% ### 1181.5 1184.75 1161.25 1176.75 2212329 2773910 ### (0.02%) 0.83% 13.41% ### 1175.75 1176.5 1153.5 1157 2456997 2778957 ### (1.68%) 0.92% 14.83% ### 1156.75 1176.25 1154.25 1175.25 1821455 2782893 ### 1.58% 0.98% 15.84% ### 1177.75 1179.25 1161.25 1162 963332 2773708 ### (1.13%) 1.02% 16.44% ### 1162 1172.5 1151 1165.25 2491942 2771661 ### 0.28% 1.02% 16.46% ### 1165.25 1167 1151.75 1158.25 3089404 2792037 ### (0.60%) 1.02% 16.59%

12/1/2010 1158.25 1186.5 1155 1183.25 2346276 2827756 12/1/2010 2.16% 1.12% 18.13% 12/2/2010 1182.75 1202 1180.75 1201.5 2037342 2845193 12/2/2010 1.54% 1.17% 18.89% 12/3/2010 1201.5 1206 1191.75 1202.25 1890658 2855263 12/3/2010 0.06% 1.10% 17.76% 12/6/2010 1202.25 1205.5 1195 1200.75 1326050 2803507 12/6/2010 (0.12%) 1.10% 17.74% 12/7/2010 1201.5 1213.75 1197.75 1202 2449523 2743781 12/7/2010 0.10% 1.10% 17.73% 12/8/2010 1201.5 1208 1196 1207.5 2142544 2518842 12/8/2010 0.46% 1.08% 17.54% 12/9/2010 1207 1216.75 1205 1211.75 1073405 871881 12/9/2010 0.35% 1.08% 17.56%

### 1211.5 1220 1210.5 1219.75 1450096 1279636 ### 0.66% 1.09% 17.63% ### 1219 1225.75 1215.75 1220 1824807 1594522 ### 0.02% 1.04% 16.77% ### 1219.75 1226 1216.5 1220.5 2008662 1991813 ### 0.04% 1.04% 16.77% ### 1220.5 1223.25 1212.5 1215.75 2114241 2245053 ### (0.39%) 0.94% 15.18% ### 1215.75 1223.5 1211.25 1222.25 1738245 2397297 ### 0.53% 0.94% 15.21% ### 1222.25 1224.75 1218.25 1222.25 1340620 2392696 ### 0.00% 0.87% 14.16% ### 1223.75 1229.5 1217.75 1225 1145804 2422001 ### 0.22% 0.87% 14.15% ### 1224.75 1235 1224.5 1234.5 943293 2433418 ### 0.78% 0.88% 14.27% ### 1233.75 1238.75 1232.75 1238.25 664450 2433411 ### 0.30% 0.76% 12.24% ### 1238.25 1239.5 1233 1236.75 594048 2437477 ### (0.12%) 0.70% 11.40% ### 1233.25 1238 1229.25 1237 587701 2458879 ### 0.02% 0.63% 10.16% ### 1237.25 1240.25 1235.25 1237.75 553798 2477060 ### 0.06% 0.63% 10.20% ### 1237.75 1242.25 1237 1239.5 588441 2475165 ### 0.14% 0.60% 9.63% ### 1239.5 1241.25 1235.25 1238.25 713588 2469321 ### (0.10%) 0.42% 6.82% ### 1238 1241.5 1233.25 1236.75 667046 2478376 ### (0.12%) 0.29% 4.73%

1/3/2011 1236.75 1256.25 1236.75 1249 1591034 2500721 1/3/2011 0.99% 0.35% 5.62% 1/4/2011 1248.5 1253.75 1242 1249 1778621 2495528 1/4/2011 0.00% 0.34% 5.54% 1/5/2011 1249.25 1257.5 1239.5 1255.5 1797267 2510775 1/5/2011 0.52% 0.35% 5.65% 1/6/2011 1255.5 1260.75 1250 1254 1614397 2495267 1/6/2011 (0.12%) 0.35% 5.70% 1/7/2011 1253.5 1257.75 1241.5 1251.25 2175596 2505895 1/7/2011 (0.22%) 0.36% 5.85%

1/10/2011 1250 1251.75 1241.75 1249.25 1876415 2507962 1/10/2011 (0.16%) 0.35% 5.63% 1/11/2011 1249.25 1257.5 1247.75 1254.25 1662412 2527804 1/11/2011 0.40% 0.35% 5.70% 1/12/2011 1253.75 1268 1253 1267.25 1604117 2557791 1/12/2011 1.04% 0.40% 6.54% 1/13/2011 1267 1268.25 1260 1265 1671242 2531081 1/13/2011 (0.18%) 0.39% 6.33% 1/14/2011 1265 1273.75 1258 1273.25 1631162 2527355 1/14/2011 0.65% 0.40% 6.43% 1/18/2011 1269.25 1278.75 1266.5 1278.5 1673094 2563543 1/18/2011 0.41% 0.40% 6.42% 1/19/2011 1278.25 1280 1258.75 1262.25 2322868 2586802 1/19/2011 (1.27%) 0.52% 8.40% 1/20/2011 1263 1265.25 1251.25 1260 2534106 2614326 1/20/2011 (0.18%) 0.50% 8.13% 1/21/2011 1259.75 1271.75 1257 1263.5 2012431 2594871 1/21/2011 0.28% 0.50% 8.12% 1/24/2011 1263.25 1273.5 1261.5 1272.25 1635794 2634978 1/24/2011 0.69% 0.52% 8.34%

1/25/2011 1272.25 1275.5 1260.75 1271.25 2360267 2635938 1/25/2011 (0.08%) 0.52% 8.37% 1/26/2011 1271 1280.5 1269.75 1277.25 1609255 2646887 1/26/2011 0.47% 0.52% 8.45% 1/27/2011 1277.5 1282 1273 1279.5 1554851 2634255 1/27/2011 0.18% 0.52% 8.45% 1/28/2011 1279 1283.25 1254.25 1255.25 3238629 2694729 1/28/2011 (1.90%) 0.69% 11.25% 1/31/2011 1255.25 1267.5 1246 1266.25 2314420 2666224 1/31/2011 0.88% 0.72% 11.59%

2/1/2011 1266.25 1289.75 1265 1286.5 2089240 2690241 2/1/2011 1.60% 0.77% 12.40% 2/2/2011 1286 1289.25 1281.75 1283.75 1396167 2714368 2/2/2011 (0.21%) 0.77% 12.46% 2/3/2011 1284 1289.5 1275.25 1287 1828391 2692805 2/3/2011 0.25% 0.76% 12.38% 2/4/2011 1287 1292.25 1281.75 1291 1585618 2706640 2/4/2011 0.31% 0.76% 12.36% 2/7/2011 1291 1303.75 1289.75 1299.5 1501112 2730158 2/7/2011 0.66% 0.77% 12.41% 2/8/2011 1298.75 1306 1296.75 1305.5 1453914 2754984 2/8/2011 0.46% 0.76% 12.37% 2/9/2011 1305.25 1305.75 1295.5 1303 1825859 2780883 2/9/2011 (0.19%) 0.77% 12.44%

2/10/2011 1302.25 1304.25 1292.25 1302.5 2055532 2799077 2/10/2011 (0.04%) 0.74% 12.04% 2/11/2011 1302 1312.5 1293.75 1311 1881031 2799214 2/11/2011 0.65% 0.75% 12.11% 2/14/2011 1311 1315 1308.25 1311.5 1171814 2809512 2/14/2011 0.04% 0.74% 11.98% 2/15/2011 1311.75 1313 1306 1310 1457415 2814250 2/15/2011 (0.11%) 0.74% 11.98% 2/16/2011 1310 1319.75 1309.5 1316.75 1801087 2845287 2/16/2011 0.52% 0.67% 10.79% 2/17/2011 1316.75 1323.75 1312.25 1321.5 1677669 2849648 2/17/2011 0.36% 0.66% 10.70% 2/18/2011 1321.5 1326.75 1318.75 1326.25 1516091 2854700 2/18/2011 0.36% 0.66% 10.71% 2/22/2011 1326 1326.25 1294 1298.25 3257861 2898256 2/22/2011 (2.11%) 0.84% 13.53% 2/23/2011 1297.75 1304.25 1281.25 1289.25 3075485 2910101 2/23/2011 (0.69%) 0.85% 13.82% 2/24/2011 1289.5 1294.5 1276.25 1286.5 2903883 2875305 2/24/2011 (0.21%) 0.85% 13.77% 2/25/2011 1286.25 1303.75 1285.25 1302.5 1827557 2871412 2/25/2011 1.24% 0.89% 14.44% 2/28/2011 1302 1312.75 1296.75 1309.75 1941581 2852603 2/28/2011 0.56% 0.76% 12.37%

3/1/2011 1309.75 1320.25 1284.5 1284.75 3054741 2898347 3/1/2011 (1.91%) 0.88% 14.28% 3/2/2011 1285 1297.5 1280 1289.5 2680941 2915339 3/2/2011 0.37% 0.81% 13.11% 3/3/2011 1290 1315.75 1288.75 1313.5 2361733 2887515 3/3/2011 1.86% 0.91% 14.67% 3/4/2011 1313.5 1318.25 1295 1304 2944659 2894251 3/4/2011 (0.72%) 0.92% 14.97% 3/7/2011 1304 1311 1286.5 1292.75 2702700 2897776 3/7/2011 (0.86%) 0.95% 15.31% 3/8/2011 1292.5 1309.5 1289.75 1303.75 2209200 2798341 3/8/2011 0.85% 0.95% 15.44% 3/9/2011 1303.5 1308.75 1295.25 1299.25 2196273 2614534 3/9/2011 (0.35%) 0.95% 15.40%

3/10/2011 1299.75 1301.25 1276.5 1278.25 1844627 945951 3/10/2011 (1.62%) 1.02% 16.44% 3/11/2011 1277.75 1292.5 1267.25 1290 2185696 1310121 3/11/2011 0.92% 1.04% 16.85% 3/14/2011 1287.25 1289.5 1269.75 1279.25 2788791 1639297 3/14/2011 (0.83%) 1.04% 16.86% 3/15/2011 1279.25 1282 1239.75 1264 3992352 2134386 3/15/2011 (1.19%) 1.07% 17.28% 3/16/2011 1263.5 1272.25 1232 1242.75 4540281 2518402 3/16/2011 (1.68%) 1.12% 18.11% 3/17/2011 1243.5 1263.25 1230 1257.5 2979478 2586929 3/17/2011 1.19% 1.15% 18.66% 3/18/2011 1257.25 1276.25 1250.25 1263 2342198 2565944 3/18/2011 0.44% 1.16% 18.70% 3/21/2011 1265 1285 1263.5 1281.75 1488232 2553822 3/21/2011 1.48% 1.21% 19.60% 3/22/2011 1281.25 1285.25 1276.25 1277 1441789 2568898 3/22/2011 (0.37%) 1.12% 18.18% 3/23/2011 1276.5 1284.75 1267.75 1280.75 1939892 2587522 3/23/2011 0.29% 1.12% 18.07% 3/24/2011 1280.75 1295.5 1278 1294 1833298 2603534 3/24/2011 1.03% 1.14% 18.45% 3/25/2011 1293.25 1303.25 1292.75 1298.75 1651563 2598402 3/25/2011 0.37% 1.11% 17.92% 3/28/2011 1298 1304 1290.75 1291 1290490 2631428 3/28/2011 (0.60%) 1.11% 17.91% 3/29/2011 1291.5 1306.5 1289 1305.25 1549071 2650848 3/29/2011 1.10% 1.05% 16.93% 3/30/2011 1305 1316.5 1303.5 1312.75 1407633 2638334 3/30/2011 0.57% 1.05% 16.99% 3/31/2011 1313.25 1314.5 1309.25 1309.75 1521964 2647743 3/31/2011 (0.23%) 0.97% 15.62%

4/1/2011 1309.75 1322.5 1309.25 1316.5 1660075 2635255 4/1/2011 0.52% 0.96% 15.48% 4/4/2011 1315.75 1321.5 1313.25 1318 1273974 2646233 4/4/2011 0.11% 0.93% 15.09% 4/5/2011 1318.5 1323 1311.75 1315.5 1558287 2675137 4/5/2011 (0.19%) 0.92% 14.84% 4/6/2011 1315.75 1325.25 1314.75 1317.75 1656416 2665569 4/6/2011 0.17% 0.91% 14.77% 4/7/2011 1317.75 1324 1311 1317.25 2180272 2671718 4/7/2011 (0.04%) 0.82% 13.31% 4/8/2011 1317.25 1324.5 1307.5 1312.5 1858868 2688459 4/8/2011 (0.36%) 0.81% 13.10%

4/11/2011 1314.5 1319 1305.75 1308.25 1527470 2695169 4/11/2011 (0.32%) 0.79% 12.73% 4/12/2011 1309 1309.25 1294 1297 2078928 2685024 4/12/2011 (0.86%) 0.76% 12.31% 4/13/2011 1297 1307.5 1293.75 1297.5 1919662 2667514 4/13/2011 0.04% 0.63% 10.21% 4/14/2011 1298 1302 1287 1299 2027796 2690414 4/14/2011 0.12% 0.59% 9.52% 4/15/2011 1299.25 1308 1294.5 1307.5 1644200 2683332 4/15/2011 0.65% 0.60% 9.64% 4/18/2011 1307 1307.5 1279 1289.75 2255340 2687640 4/18/2011 (1.36%) 0.61% 9.80% 4/19/2011 1289.75 1298.25 1282.75 1297.25 1528995 2693117 4/19/2011 0.58% 0.61% 9.87% 4/20/2011 1297.5 1319.25 1297.25 1317 1871971 2694507 4/20/2011 1.52% 0.69% 11.15% 4/21/2011 1317.25 1326.5 1316.75 1319.75 1276072 2681863 4/21/2011 0.21% 0.66% 10.63% 4/25/2011 1319.25 1324 1316 1319.5 599322 2693363 4/25/2011 (0.02%) 0.65% 10.59% 4/26/2011 1319.5 1335 1316.75 1329.75 1386038 2726416 4/26/2011 0.78% 0.65% 10.54% 4/27/2011 1329.75 1343 1329 1339.75 1386295 2751861 4/27/2011 0.75% 0.63% 10.17%

4/28/2011 1340.25 1347.25 1335.5 1343.75 1706910 2743397 4/28/2011 0.30% 0.62% 10.06% 4/29/2011 1343.75 1352.5 1341.5 1348.5 1272342 2742628 4/29/2011 0.35% 0.62% 10.00%

5/2/2011 1352 1362.25 1343.5 1346.5 1707040 2742024 5/2/2011 (0.15%) 0.61% 9.95% 5/3/2011 1346.5 1347.25 1334.5 1340.75 1674060 2794195 5/3/2011 (0.43%) 0.63% 10.14% 5/4/2011 1340.5 1343.75 1326.25 1331.75 2382666 2790443 5/4/2011 (0.67%) 0.65% 10.47% 5/5/2011 1332 1337.5 1314 1323.75 2915006 2758798 5/5/2011 (0.60%) 0.66% 10.73% 5/6/2011 1323 1340.5 1320.5 1323.25 2673077 2751590 5/6/2011 (0.04%) 0.66% 10.73% 5/9/2011 1326 1335 1323.25 1331.5 1666599 2677123 5/9/2011 0.62% 0.67% 10.83%

5/10/2011 1331.25 1345.25 1327.75 1342.5 1571216 2680756 5/10/2011 0.83% 0.68% 11.05% 5/11/2011 1342.5 1347 1321.75 1327.5 2190906 2664963 5/11/2011 (1.12%) 0.70% 11.40% 5/12/2011 1328 1337.5 1317.5 1336.25 2254909 2647161 5/12/2011 0.66% 0.71% 11.56% 5/13/2011 1336 1341.25 1319.25 1322.75 2235430 2650027 5/13/2011 (1.01%) 0.76% 12.30% 5/16/2011 1320.75 1330 1313.5 1314.25 2177046 2666484 5/16/2011 (0.64%) 0.76% 12.38% 5/17/2011 1314 1320.75 1304.75 1314.25 2292146 2688008 5/17/2011 0.00% 0.69% 11.20% 5/18/2011 1315 1329.25 1313.25 1327.25 1612220 2695103 5/18/2011 0.99% 0.71% 11.54% 5/19/2011 1327 1334.25 1323.25 1330.5 1825276 2706744 5/19/2011 0.24% 0.63% 10.25% 5/20/2011 1330.25 1332.75 1315.75 1316.5 2248408 2719462 5/20/2011 (1.05%) 0.68% 10.97% 5/23/2011 1314.75 1315.75 1299.5 1304 2054242 2752316 5/23/2011 (0.95%) 0.71% 11.49% 5/24/2011 1303.5 1311.25 1300.5 1302.25 1860601 2761199 5/24/2011 (0.13%) 0.68% 11.04% 5/25/2011 1301.75 1313.25 1291 1305.25 2100699 2780614 5/25/2011 0.23% 0.66% 10.64% 5/26/2011 1305.25 1316.25 1301.25 1315.25 2286732 2762061 5/26/2011 0.77% 0.68% 11.03% 5/27/2011 1315.25 1322.5 1313.25 1318.75 1393298 2775088 5/27/2011 0.27% 0.68% 10.98% 5/31/2011 1319.75 1334.5 1317 1332.75 1927228 2815719 5/31/2011 1.06% 0.73% 11.77%

6/1/2011 1332.75 1336.5 1300 1300.75 2681845 2835132 6/1/2011 (2.40%) 0.90% 14.49% 6/2/2011 1302 1306.5 1293 1301.25 2433178 2815208 6/2/2011 0.04% 0.89% 14.37% 6/3/2011 1301 1302.25 1283.25 1285 2677734 2930588 6/3/2011 (1.25%) 0.92% 14.85% 6/6/2011 1287.5 1287.75 1272 1273.75 2185300 2889057 6/6/2011 (0.88%) 0.93% 15.08% 6/7/2011 1274 1284.25 1271.25 1273.5 2069553 2803593 6/7/2011 (0.02%) 0.91% 14.78% 6/8/2011 1273.75 1276.5 1265 1265.75 2695851 2671828 6/8/2011 (0.61%) 0.88% 14.29% 6/9/2011 1267.25 1282.75 1264 1276.25 978448 808832 6/9/2011 0.83% 0.89% 14.47%

6/10/2011 1276.5 1277.75 1256 1258 2355546 1201982 6/10/2011 (1.43%) 0.91% 14.74% 6/13/2011 1259.25 1266 1253.75 1260.5 2517553 1584108 6/13/2011 0.20% 0.90% 14.59% 6/14/2011 1261.75 1281.25 1259.5 1278.75 2834353 2117784 6/14/2011 1.45% 0.97% 15.70% 6/15/2011 1278 1278 1250 1254.25 3639073 2472316 6/15/2011 (1.92%) 1.05% 16.96% 6/16/2011 1255.25 1263.25 1246.5 1257.75 3263670 2557724 6/16/2011 0.28% 1.02% 16.45% 6/17/2011 1258 1271.5 1252.75 1260.25 2335210 2572371 6/17/2011 0.20% 1.01% 16.43% 6/20/2011 1259.25 1269.5 1250.5 1268 1675608 2540173 6/20/2011 0.61% 1.02% 16.44% 6/21/2011 1267.5 1287 1266 1282.25 2075568 2531071 6/21/2011 1.12% 1.04% 16.81% 6/22/2011 1282 1288 1273.75 1274 1872931 2524036 6/22/2011 (0.64%) 1.05% 16.93% 6/23/2011 1274.25 1275 1251.25 1271.25 3316080 2548765 6/23/2011 (0.22%) 1.04% 16.89% 6/24/2011 1271.75 1280.25 1255.5 1258.25 2499136 2575596 6/24/2011 (1.02%) 1.04% 16.83% 6/27/2011 1259.25 1274.25 1251.25 1270.5 2000732 2536579 6/27/2011 0.97% 1.07% 17.29% 6/28/2011 1271.25 1289.25 1265.75 1288.75 1913881 2507415 6/28/2011 1.44% 1.09% 17.71% 6/29/2011 1287.75 1299.75 1285.75 1298.5 2489063 2484633 6/29/2011 0.76% 0.98% 15.79% 6/30/2011 1298.25 1311.75 1296.5 1309.75 1875270 2490419 6/30/2011 0.87% 0.99% 16.10%

7/1/2011 1309.75 1330.75 1306.75 1329 1955127 2468230 7/1/2011 1.47% 1.00% 16.12% 7/5/2011 1328.25 1332 1322.5 1331 1729821 2485036 7/5/2011 0.15% 0.96% 15.62% 7/6/2011 1330.25 1335 1320.75 1330 1819425 2486568 7/6/2011 (0.08%) 0.97% 15.63% 7/7/2011 1330.25 1347 1330 1346 1678156 2502471 7/7/2011 1.20% 0.97% 15.68% 7/8/2011 1345.75 1348.75 1323.5 1336 2253551 2525676 7/8/2011 (0.74%) 0.99% 15.99%

7/11/2011 1333.5 1333.75 1306 1312.75 2432258 2558138 7/11/2011 (1.74%) 1.02% 16.47% 7/12/2011 1312.25 1317.5 1289.5 1305 2888474 2589528 7/12/2011 (0.59%) 1.03% 16.73% 7/13/2011 1305 1322 1301.5 1306.5 2315093 2579101 7/13/2011 0.11% 0.99% 16.01% 7/14/2011 1306.5 1317.5 1296.25 1301 2877782 2575806 7/14/2011 (0.42%) 0.88% 14.22% 7/15/2011 1302 1309.75 1294.75 1309.25 2298613 2547985 7/15/2011 0.63% 0.88% 14.31% 7/18/2011 1308.75 1309 1285.5 1294.75 2168734 2565507 7/18/2011 (1.11%) 0.93% 15.07% 7/19/2011 1295.75 1318.5 1294.5 1315.5 2098625 2585860 7/19/2011 1.60% 0.98% 15.90% 7/20/2011 1315.5 1324 1313.5 1315.5 1637321 2594680 7/20/2011 0.00% 0.96% 15.51% 7/21/2011 1316 1337.75 1309.25 1336.75 2311771 2575395 7/21/2011 1.62% 0.99% 16.09% 7/22/2011 1335.5 1342 1327 1335.25 1478170 2559590 7/22/2011 (0.11%) 0.99% 16.06% 7/25/2011 1324.25 1334.5 1316.25 1327.75 1640963 2567417 7/25/2011 (0.56%) 0.97% 15.63% 7/26/2011 1327.75 1334 1319.75 1320.5 1698186 2558292 7/26/2011 (0.55%) 0.97% 15.66% 7/27/2011 1320.25 1322.75 1292.25 1293.25 2535676 2622989 7/27/2011 (2.06%) 1.05% 16.92% 7/28/2011 1293.5 1307.25 1289.5 1291 2338767 2633648 7/28/2011 (0.17%) 1.03% 16.70% 7/29/2011 1292 1295 1272.75 1282.75 2889931 2689055 7/29/2011 (0.64%) 1.02% 16.48%

8/1/2011 1300.25 1304 1264.5 1274 3020191 2717702 8/1/2011 (0.68%) 0.96% 15.46% 8/2/2011 1274 1279.25 1241 1241.5 3293753 2786136 8/2/2011 (2.55%) 1.08% 17.55% 8/3/2011 1242.5 1252.25 1224.5 1248.75 3815275 2837954 8/3/2011 0.58% 1.10% 17.85% 8/4/2011 1248.5 1258.5 1187.5 1193 5039775 2960288 8/4/2011 (4.46%) 1.39% 22.43% 8/5/2011 1193.5 1213.25 1157.5 1192 6160540 2938984 8/5/2011 (0.08%) 1.39% 22.49% 8/8/2011 1161.5 1183.25 1103.75 1105.5 6173318 3242540 8/8/2011 (7.26%) 2.03% 32.93% 8/9/2011 1107.25 1169.75 1071.25 1166 6285917 3337317 8/9/2011 5.47% 2.48% 40.08%

8/10/2011 1165.25 1173 1108 1117.75 4925051 3446782 8/10/2011 (4.14%) 2.60% 42.05% 8/11/2011 1117.25 1178.25 1097.25 1162.75 4482222 3385012 8/11/2011 4.03% 2.81% 45.46% 8/12/2011 1162.5 1181 1141 1171 2720118 3371749 8/12/2011 0.71% 2.81% 45.49% 8/15/2011 1174 1196 1170.5 1192.75 2002026 3367839 8/15/2011 1.86% 2.86% 46.22% 8/16/2011 1190.75 1195.75 1171.75 1186.5 2556621 3169438 8/16/2011 (0.52%) 2.82% 45.60% 8/17/2011 1186 1201 1175.75 1184.25 2112805 3203678 8/17/2011 (0.19%) 2.82% 45.58% 8/18/2011 1183.75 1184.25 1122.5 1137.75 3809916 3363879 8/18/2011 (3.93%) 2.87% 46.46% 8/19/2011 1138 1147.5 1111.75 1118.25 3583223 3390307 8/19/2011 (1.71%) 2.87% 46.51% 8/22/2011 1116.25 1140.75 1105.5 1117.5 2714560 3396068 8/22/2011 (0.07%) 2.88% 46.59% 8/23/2011 1117.75 1155 1112.75 1152.75 3338118 3371817 8/23/2011 3.15% 3.01% 48.76% 8/24/2011 1153.25 1171 1136.75 1166.25 2616278 3395461 8/24/2011 1.17% 3.02% 48.86% 8/25/2011 1165.75 1182.75 1147.25 1151.75 3198280 3429011 8/25/2011 (1.24%) 3.02% 48.92% 8/26/2011 1151.25 1174 1127 1170.25 3053686 3452313 8/26/2011 1.61% 3.06% 49.52% 8/29/2011 1169.75 1203 1166.5 1202.25 1832857 3471251 8/29/2011 2.73% 3.14% 50.79% 8/30/2011 1202.25 1213 1187.75 1199 2576230 3467846 8/30/2011 (0.27%) 3.09% 50.03% 8/31/2011 1198.5 1224 1195.5 1212 3159833 3451099 8/31/2011 1.08% 3.10% 50.16%

9/1/2011 1212 1222.75 1195 1195.5 2656315 3435920 9/1/2011 (1.36%) 2.94% 47.63% 9/2/2011 1195.25 1197.5 1162.75 1163.5 2427798 3540459 9/2/2011 (2.68%) 3.01% 48.65% 9/5/2011 1159.25 1161 1132.5 1139.75 361512 3540459 9/5/2011 (2.04%) 2.54% 41.12% 9/6/2011 1137.25 1161 1130.25 1158.75 3522564 3594453 9/6/2011 1.67% 2.25% 36.40% 9/7/2011 1158.75 1194 1158 1193.25 2595150 3415957 9/7/2011 2.98% 2.12% 34.32% 9/8/2011 1193.75 1198 1176.25 1180 1326103 831091 9/8/2011 (1.11%) 1.96% 31.66% 9/9/2011 1180 1188.25 1141 1152.25 3165441 1392352 9/9/2011 (2.35%) 2.02% 32.76%

9/12/2011 1136 1158 1123.5 1157.25 3612118 1887934 9/12/2011 0.43% 1.98% 32.00% 9/13/2011 1156.75 1170.5 1139 1165.25 3694565 2407037 9/13/2011 0.69% 1.98% 32.10% 9/14/2011 1165.5 1196.25 1148 1182.25 3552069 2754383 9/14/2011 1.46% 2.01% 32.57% 9/15/2011 1182.25 1205.5 1175.75 1204.25 3024123 2883574 9/15/2011 1.86% 1.82% 29.51% 9/16/2011 1203 1214.5 1194.75 1211.75 2661191 2930734 9/16/2011 0.62% 1.76% 28.51% 9/19/2011 1199.25 1203.75 1181.5 1197.75 2446620 2897053 9/19/2011 (1.16%) 1.79% 29.03% 9/20/2011 1196.75 1214.5 1185.25 1196 2614553 2918960 9/20/2011 (0.15%) 1.67% 27.04% 9/21/2011 1196.75 1203.75 1155 1155.75 3254771 2936112 9/21/2011 (3.37%) 1.83% 29.65% 9/22/2011 1155.25 1159 1106.75 1123.5 4741905 3081477 9/22/2011 (2.79%) 1.92% 31.02% 9/23/2011 1124.25 1138.5 1102 1129.75 3365634 3067211 9/23/2011 0.56% 1.88% 30.45% 9/26/2011 1122 1159 1115 1158.5 3089036 3062794 9/26/2011 2.54% 1.87% 30.21% 9/27/2011 1157.5 1190 1155 1169.5 3258954 2974168 9/27/2011 0.95% 1.88% 30.47% 9/28/2011 1169 1181.75 1143.5 1148.75 2802438 2976156 9/28/2011 (1.77%) 1.90% 30.69% 9/29/2011 1148.25 1170.75 1133.5 1156.25 2975702 2956018 9/29/2011 0.65% 1.89% 30.55% 9/30/2011 1157.25 1159.75 1121.5 1126 2980938 3006367 9/30/2011 (2.62%) 1.88% 30.48% 10/3/2011 1123 1133.5 1085.25 1086.25 3504183 3115740 10/3/2011 (3.53%) 1.99% 32.18% 10/4/2011 1087.5 1119.75 1068 1113.5 4190407 3139609 10/4/2011 2.51% 2.04% 33.00% 10/5/2011 1114.5 1141.25 1106.5 1135 3039981 3115881 10/5/2011 1.93% 1.97% 31.81% 10/6/2011 1135 1160.5 1129 1157.5 2903759 3116403 10/6/2011 1.98% 2.01% 32.59% 10/7/2011 1157.25 1173.75 1144.75 1155 2865466 3053178 10/7/2011 (0.22%) 1.94% 31.44%

### 1157.75 1192.25 1156.5 1191 1776333 2994500 ### 3.12% 2.06% 33.35% ### 1190.5 1194.75 1180.75 1189.5 1953734 3007577 ### (0.13%) 2.06% 33.31% ### 1187.5 1216 1180.75 1198.25 2558741 3007577 ### 0.74% 2.04% 33.01% ### 1198.5 1200 1195.5 1196 59459 2983719 ### (0.19%) 2.00% 32.31%

Annualized

Date Open High Low Close Vol OI 20 Day Hvol

### 1028.25 1037.25 1027.5 1032 1060806 2319235 Date Return StDev Annualized### 1031.5 1034.75 1023.5 1029.25 1519381 2316144 ### (0.27%)### 1033.25 1050.25 1033.25 1048.25 1968023 2349352 ### 1.85% ### 1048 1053.75 1041 1050.25 1839117 2356006 ### 0.19% ### 1050.75 1056 1038 1042.5 2017636 2362701 ### (0.74%)### 1042.5 1057.25 1036.75 1051.5 1559384 2367497 ### 0.86% ### 1050.25 1059.5 1042.5 1050 1991670 2372653 ### (0.14%)### 1049.5 1059 1033 1038.5 2418114 2412330 ### (1.10%)### 1037 1052.75 1030.75 1051.25 2184400 2427259 ### 1.23% ### 1051 1055.75 1032 1037.5 2348150 2428355 ### (1.31%)### 1037.5 1049 1021.75 1027 2339507 2447660 ### (1.01%)### 1026.75 1030.25 1017.5 1021 2460527 2440271 ### (0.58%)### 1021.5 1023.5 998.5 999 2843071 2515492 ### (2.15%)### 999.25 1024.5 997.75 1022 2298367 2485726 ### 2.30% ### 1021.75 1023.25 990 993.5 3376612 2477634 ### (2.79%)

11/2/2009 991.75 1010 986.5 999.5 2783823 2458795 11/2/2009 0.60% 11/3/2009 999.75 1004.5 987 1002.25 2315679 2483205 11/3/2009 0.28% 11/4/2009 1002.25 1019 1001.25 1007.5 2360779 2510493 11/4/2009 0.52% 11/5/2009 1007.25 1024.5 999.5 1023.75 1949016 2512147 11/5/2009 1.61% 11/6/2009 1023.75 1030 1014 1026.75 2082058 2525359 11/6/2009 0.29% 11/9/2009 1026.25 1052.5 1025.5 1052.25 1833896 2503851 11/9/2009 2.48% 1.41% 22.79%

### 1052 1055 1045.5 1052.5 1810118 2501068 ### 0.02% 1.41% 22.75% ### 1052.25 1063.75 1051.75 1056.75 1800698 2503906 ### 0.40% 1.35% 21.82% ### 1056.5 1061.5 1043 1047.75 2020189 2521044 ### (0.85%) 1.36% 22.05% ### 1048 1056.5 1043.25 1052 1478254 2546421 ### 0.41% 1.35% 21.92% ### 1052.5 1072.75 1051.5 1066.75 1992105 2556245 ### 1.40% 1.38% 22.27% ### 1066.75 1069.5 1060.5 1068 1517083 2546124 ### 0.12% 1.38% 22.26% ### 1068 1071.25 1061.25 1069 1480000 2537795 ### 0.09% 1.35% 21.79% ### 1069 1070 1047 1054.75 2047058 2551165 ### (1.33%) 1.36% 22.02% ### 1054.5 1055.5 1044 1050.5 1451811 2564267 ### (0.40%) 1.33% 21.50% ### 1050.25 1072 1049.5 1064.25 1545064 2567414 ### 1.31% 1.33% 21.53% ### 1064 1067.5 1055.5 1063.5 1584089 2568594 ### (0.07%) 1.32% 21.36% ### 1063.75 1071.75 1062.75 1069.5 1078340 2574456 ### 0.56% 1.20% 19.38% ### 1069.25 1071.75 1027.5 1050 1704981 2599910 ### (1.82%) 1.20% 19.40% ### 1052 1058.5 1045 1055.25 2016591 2577784 ### 0.50% 0.98% 15.88%

12/1/2009 1055.25 1072.25 1052.75 1069 1835688 2580449 12/1/2009 1.30% 1.00% 16.26% 12/2/2009 1068.75 1076 1064.75 1068.5 1669060 2589015 12/2/2009 (0.05%) 1.01% 16.32% 12/3/2009 1068.25 1077.5 1058 1058.5 2054949 2572315 12/3/2009 (0.94%) 1.05% 16.92% 12/4/2009 1058.25 1079.5 1055.75 1068.5 2928961 2608336 12/4/2009 0.94% 1.01% 16.34% 12/7/2009 1068.5 1071.25 1059.25 1064.25 1572214 2568259 12/7/2009 (0.40%) 1.02% 16.48% 12/8/2009 1065.25 1068 1048.25 1050.5 2251962 2494080 12/8/2009 (1.29%) 0.91% 14.80% 12/9/2009 1050.5 1058 1045.5 1056 2239481 2351765 12/9/2009 0.52% 0.92% 14.92%

### 1055.25 1066.5 1052.75 1062.25 1104971 908695 ### 0.59% 0.93% 15.01% ### 1062.75 1070.5 1061.25 1068.25 1710243 1315764 ### 0.56% 0.91% 14.73% ### 1067.5 1078 1064.75 1073.5 1720435 1779529 ### 0.49% 0.91% 14.76% ### 1073.25 1076 1065.25 1069 1804825 2112600 ### (0.42%) 0.87% 14.01% ### 1068.75 1077 1068 1070.75 1666850 2277192 ### 0.16% 0.87% 14.01% ### 1070.25 1071.5 1055.75 1059.25 2014202 2333026 ### (1.07%) 0.90% 14.55% ### 1059.25 1067.75 1053.5 1062.7 1732758 2332548 ### 0.33% 0.85% 13.74% ### 1062.75 1078.25 1061.5 1073.25 1163792 2359131 ### 0.99% 0.87% 14.04% ### 1072.75 1080.75 1072.25 1078.5 930910 2374664 ### 0.49% 0.83% 13.37% ### 1078.75 1085 1076.25 1080.5 727761 2376350 ### 0.19% 0.83% 13.37% ### 1080.25 1087.5 1079.75 1087 248984 2394340 ### 0.60% 0.83% 13.39% ### 1087 1091.25 1082.5 1088 474293 2392937 ### 0.09% 0.69% 11.25% ### 1087.75 1093.5 1085.5 1086.75 579344 2397986 ### (0.11%) 0.69% 11.23% ### 1086.25 1087.5 1078 1087 596890 2393240 ### 0.02% 0.64% 10.33% ### 1086.75 1090.25 1074.75 1075.75 638861 2392916 ### (1.03%) 0.69% 11.10%

1/4/2010 1078.75 1094.75 1078.25 1093.75 1291254 2440458 1/4/2010 1.67% 0.74% 11.93% 1/5/2010 1093.5 1098 1090 1097.25 1378593 2402850 1/5/2010 0.32% 0.72% 11.58% 1/6/2010 1097 1100.5 1092.25 1098 1259921 2396493 1/6/2010 0.07% 0.70% 11.41% 1/7/2010 1098 1103.75 1092 1102.5 1567025 2406352 1/7/2010 0.41% 0.62% 10.00% 1/8/2010 1102.25 1106.75 1096 1106.5 1527666 2420194 1/8/2010 0.36% 0.61% 9.95%

1/11/2010 1106.5 1113 1102.75 1107.5 1456443 2427453 1/11/2010 0.09% 0.61% 9.87%

1/12/2010 1106.25 1108 1092.75 1099 2117166 2439036 1/12/2010 (0.77%) 0.64% 10.38% 1/13/2010 1099.25 1110.25 1094.25 1106.5 2131642 2475322 1/13/2010 0.68% 0.65% 10.49% 1/14/2010 1106.5 1112 1103.25 1110.25 1355731 2473392 1/14/2010 0.34% 0.63% 10.27% 1/15/2010 1111.75 1112.25 1092.5 1097.25 2059496 2454453 1/15/2010 (1.17%) 0.70% 11.40% 1/19/2010 1096.75 1112 1091.25 1110.75 1927993 2472206 1/19/2010 1.23% 0.69% 11.10% 1/20/2010 1110 1111.5 1090.25 1099 2391710 2482172 1/20/2010 (1.06%) 0.74% 12.04% 1/21/2010 1099.5 1104.25 1075.25 1076 3438955 2536905 1/21/2010 (2.09%) 0.87% 14.14% 1/22/2010 1074.75 1080.75 1051.25 1056 3544446 2615680 1/22/2010 (1.86%) 0.96% 15.54% 1/25/2010 1059 1068 1054.75 1057.5 2080292 2589797 1/25/2010 0.14% 0.96% 15.53% 1/26/2010 1059 1065 1046 1052.25 2449263 2620022 1/26/2010 (0.50%) 0.95% 15.35% 1/27/2010 1052.5 1061.25 1043.5 1059.5 2634603 2625603 1/27/2010 0.69% 0.97% 15.63% 1/28/2010 1059.5 1068.5 1039.25 1044.25 3052088 2613642 1/28/2010 (1.44%) 1.01% 16.34% 1/29/2010 1046 1058.25 1031.5 1035.5 3068079 2638822 1/29/2010 (0.84%) 1.02% 16.47%

2/1/2010 1035.5 1051.5 1033 1051.25 1896011 2619197 2/1/2010 1.52% 1.07% 17.34% 2/2/2010 1051 1066.5 1047 1062.25 2104398 2693741 2/2/2010 1.05% 1.02% 16.59% 2/3/2010 1062 1065.25 1055.5 1061.5 1883815 2684501 2/3/2010 (0.07%) 1.02% 16.50% 2/4/2010 1061.25 1063.25 1024.25 1026.75 3302110 2733407 2/4/2010 (3.27%) 1.23% 19.93% 2/5/2010 1026.75 1030 1005.75 1024.75 3983950 2752149 2/5/2010 (0.19%) 1.22% 19.74% 2/8/2010 1024.75 1033.5 1018 1021 2061320 2795324 2/8/2010 (0.37%) 1.21% 19.55% 2/9/2010 1020.5 1042 1019 1031.25 3014475 2810384 2/9/2010 1.00% 1.24% 20.14%

2/10/2010 1031.5 1037.5 1021.25 1028.25 2204772 2813255 2/10/2010 (0.29%) 1.24% 20.07% 2/11/2010 1028.5 1043 1022.5 1041.5 2262497 2826210 2/11/2010 1.29% 1.27% 20.61% 2/12/2010 1041.25 1044.75 1025 1044 2747993 2837310 2/12/2010 0.24% 1.27% 20.57% 2/16/2010 1041.5 1059 1038.5 1058.25 1761523 2795293 2/16/2010 1.36% 1.31% 21.12% 2/17/2010 1058.25 1065 1057.5 1064.5 1669958 2803301 2/17/2010 0.59% 1.28% 20.66% 2/18/2010 1064.75 1071.75 1058 1070.5 1832739 2804518 2/18/2010 0.56% 1.27% 20.57% 2/19/2010 1070.5 1076 1057.5 1071.25 2096659 2749477 2/19/2010 0.07% 1.18% 19.16% 2/22/2010 1071.25 1077.75 1068.5 1072.5 1317880 2759021 2/22/2010 0.12% 1.10% 17.82% 2/23/2010 1072 1077.75 1055.25 1062.25 2224420 2796410 2/23/2010 (0.96%) 1.13% 18.21% 2/24/2010 1061.75 1070.5 1057.5 1068.5 1882885 2805411 2/24/2010 0.59% 1.12% 18.20% 2/25/2010 1068 1068.5 1049.5 1067.25 2697610 2830299 2/25/2010 (0.12%) 1.12% 18.07% 2/26/2010 1067 1072.75 1061.25 1068.5 1944020 2819976 2/26/2010 0.12% 1.06% 17.16%

3/1/2010 1068.5 1080.5 1069.25 1079.5 1615001 2816032 3/1/2010 1.03% 1.05% 17.06% 3/2/2010 1079.25 1087.75 1077.75 1082.5 1502795 2775511 3/2/2010 0.28% 1.01% 16.32% 3/3/2010 1082.5 1090 1080 1083.5 1583814 2800091 3/3/2010 0.09% 0.99% 15.96% 3/4/2010 1083.25 1088.5 1079 1087.25 1490362 2751134 3/4/2010 0.35% 0.99% 15.97% 3/5/2010 1087 1103.75 1086.5 1101.5 1869074 2784520 3/5/2010 1.31% 0.62% 10.03% 3/8/2010 1101.5 1105.5 1100 1102 1179723 2767605 3/8/2010 0.05% 0.61% 9.89% 3/9/2010 1102.25 1110.25 1096.5 1105.5 1759468 2732028 3/9/2010 0.32% 0.59% 9.49%

3/10/2010 1105 1113 1102.75 1110.75 2112662 2587207 3/10/2010 0.47% 0.57% 9.22% 3/11/2010 1110.25 1116 1103.75 1115.75 1467691 1109345 3/11/2010 0.45% 0.55% 8.86% 3/12/2010 1115.75 1121.75 1111.75 1116.25 1866265 1481062 3/12/2010 0.04% 0.51% 8.29% 3/15/2010 1115.75 1116.25 1106.25 1115.5 1693881 1788753 3/15/2010 (0.07%) 0.52% 8.42% 3/16/2010 1115.5 1125.5 1114.25 1124.5 2010549 2086456 3/16/2010 0.81% 0.47% 7.68% 3/17/2010 1124.5 1135.25 1123.75 1130.75 2038542 2229054 3/17/2010 0.56% 0.47% 7.67% 3/18/2010 1130.5 1133.75 1126 1131 1819642 2326816 3/18/2010 0.02% 0.47% 7.66% 3/19/2010 1131 1134.75 1120 1126 2165925 2364398 3/19/2010 (0.44%) 0.50% 8.07% 3/22/2010 1123 1133 1116.5 1131.75 1915804 2366678 3/22/2010 0.51% 0.50% 8.10% 3/23/2010 1131.5 1140.25 1128.75 1139.25 1856410 2343536 3/23/2010 0.66% 0.42% 6.73% 3/24/2010 1139 1139.75 1130.75 1134.25 1992386 2364585 3/24/2010 (0.44%) 0.45% 7.24% 3/25/2010 1134 1146.25 1130 1132.5 2355473 2390362 3/25/2010 (0.15%) 0.45% 7.27% 3/26/2010 1132 1139.5 1126.25 1133.25 2161399 2406679 3/26/2010 0.07% 0.45% 7.29% 3/29/2010 1134.5 1140.75 1133.75 1138.5 1454311 2422677 3/29/2010 0.46% 0.42% 6.77% 3/30/2010 1138.25 1143.5 1134 1139.25 1642976 2411847 3/30/2010 0.07% 0.42% 6.81% 3/31/2010 1138.75 1140.25 1131 1135 2109287 2379962 3/31/2010 (0.37%) 0.44% 7.16%

4/1/2010 1136.75 1147.25 1135.5 1143.5 1942722 2403558 4/1/2010 0.75% 0.46% 7.39% 4/5/2010 1148.5 1153.5 1144.25 1152.75 1025888 2397813 4/5/2010 0.81% 0.41% 6.58% 4/6/2010 1152.75 1157.75 1147 1155.5 1395387 2398237 4/6/2010 0.24% 0.40% 6.55% 4/7/2010 1155.5 1156 1143 1148.75 2171684 2364972 4/7/2010 (0.58%) 0.44% 7.18% 4/8/2010 1148.25 1154.75 1140.75 1153.5 1910628 2389116 4/8/2010 0.41% 0.44% 7.15% 4/9/2010 1153.25 1162.75 1152.75 1162.25 1450628 2383750 4/9/2010 0.76% 0.46% 7.39%

4/12/2010 1164.5 1168.25 1160.5 1162.25 1253624 2379785 4/12/2010 0.00% 0.46% 7.40% 4/13/2010 1162 1165.5 1154.75 1162.75 1553891 2412904 4/13/2010 0.04% 0.45% 7.36% 4/14/2010 1165.25 1177 1164.25 1176.25 1727998 2440787 4/14/2010 1.16% 0.48% 7.85% 4/15/2010 1176.25 1180.25 1170.75 1178.25 1732427 2448263 4/15/2010 0.17% 0.48% 7.75%

4/16/2010 1177.75 1178.25 1152.5 1160 3584806 2465049 4/16/2010 (1.55%) 0.62% 10.02% 4/19/2010 1155.75 1166.25 1149.5 1165.25 2480009 2463376 4/19/2010 0.45% 0.61% 9.84% 4/20/2010 1165.5 1175.5 1163.75 1175.25 1534819 2474254 4/20/2010 0.86% 0.62% 10.08% 4/21/2010 1174.75 1179.25 1164.75 1170.25 2168277 2483833 4/21/2010 (0.43%) 0.63% 10.15% 4/22/2010 1168.25 1176.75 1156 1171.5 2668931 2523968 4/22/2010 0.11% 0.61% 9.91% 4/23/2010 1171 1183.5 1167.25 1182 1856101 2505018 4/23/2010 0.90% 0.63% 10.17% 4/26/2010 1182 1186.5 1177.25 1178 1624454 2504414 4/26/2010 (0.34%) 0.64% 10.36% 4/27/2010 1177.5 1179.75 1147.25 1150.75 3590721 2551935 4/27/2010 (2.31%) 0.85% 13.70% 4/28/2010 1151.25 1161.75 1146.5 1159.75 2857714 2534454 4/28/2010 0.78% 0.86% 13.95% 4/29/2010 1159.75 1176 1157.75 1175 1980761 2512231 4/29/2010 1.31% 0.90% 14.50% 4/30/2010 1175.25 1177.75 1152.5 1153.25 2897399 2506087 4/30/2010 (1.85%) 0.99% 16.06%

5/3/2010 1154.25 1171.75 1153.5 1168.25 1797282 2546897 5/3/2010 1.30% 1.02% 16.47% 5/4/2010 1168 1169.5 1134 1142.25 3553338 2537709 5/4/2010 (2.23%) 1.14% 18.43% 5/5/2010 1141.75 1144.75 1124.5 1133.75 3057926 2591435 5/5/2010 (0.74%) 1.14% 18.50% 5/6/2010 1133.5 1138.5 1025.75 1092.25 5675645 2688328 5/6/2010 (3.66%) 1.39% 22.51% 5/7/2010 1093.5 1105.25 1060.5 1076.75 5013862 2647315 5/7/2010 (1.42%) 1.39% 22.52%

5/10/2010 1095 1131.75 1091.25 1126.25 3640288 2646663 5/10/2010 4.60% 1.78% 28.83% 5/11/2010 1125.75 1138.75 1110.25 1122 2663633 2686701 5/11/2010 (0.38%) 1.78% 28.84% 5/12/2010 1121.5 1141 1110.75 1139.5 2109839 2595338 5/12/2010 1.56% 1.80% 29.12% 5/13/2010 1138.75 1144.5 1123.5 1126.5 1963587 2576551 5/13/2010 (1.14%) 1.81% 29.31% 5/14/2010 1125.25 1129.25 1093.5 1105 2979512 2589750 5/14/2010 (1.91%) 1.83% 29.57% 5/17/2010 1103.5 1110 1082.5 1104.25 3052733 2570497 5/17/2010 (0.07%) 1.82% 29.46% 5/18/2010 1105.25 1117.25 1085 1088.5 3092769 2584389 5/18/2010 (1.43%) 1.82% 29.44% 5/19/2010 1087.75 1092.5 1068.5 1079.75 3585852 2607620 5/19/2010 (0.80%) 1.82% 29.48% 5/20/2010 1079.75 1086.25 1037 1039.75 4378875 2728055 5/20/2010 (3.70%) 1.96% 31.74% 5/21/2010 1039 1058.5 1021 1054.25 4024607 2604744 5/21/2010 1.39% 1.98% 32.11% 5/24/2010 1055.25 1058.5 1039.75 1040.75 2231741 2651323 5/24/2010 (1.28%) 1.99% 32.20% 5/25/2010 1039 1044.5 1006.5 1042.75 3433912 2656785 5/25/2010 0.19% 1.95% 31.64% 5/26/2010 1042.25 1059.25 1030.25 1031 2929237 2692123 5/26/2010 (1.13%) 1.94% 31.34% 5/27/2010 1029.75 1072.75 1025.25 1070.75 2613372 2645964 5/27/2010 3.86% 2.14% 34.63% 5/28/2010 1070 1076.5 1053 1058.25 2368730 2642268 5/28/2010 (1.17%) 2.12% 34.33%

6/1/2010 1058.25 1065.75 1038.25 1039.25 2593945 2713752 6/1/2010 (1.80%) 2.10% 34.03% 6/2/2010 1039 1068 1037 1066.5 2214865 2694730 6/2/2010 2.62% 2.18% 35.27% 6/3/2010 1066.75 1075 1060.5 1073.25 2033254 2657930 6/3/2010 0.63% 2.19% 35.39% 6/4/2010 1073.75 1077.5 1029 1035.75 3211493 2750025 6/4/2010 (3.49%) 2.17% 35.17% 6/7/2010 1035.75 1040.5 1016.75 1017.75 2390986 2771249 6/7/2010 (1.74%) 2.18% 35.34% 6/8/2010 1018 1033 1011 1029 3401030 2736063 6/8/2010 1.11% 1.90% 30.68% 6/9/2010 1028.75 1047.5 1021 1025.25 2970468 2561641 6/9/2010 (0.36%) 1.90% 30.68%

6/10/2010 1024.75 1057.5 1021.75 1053.5 1928796 1116027 6/10/2010 2.76% 1.98% 32.02% 6/11/2010 1056.75 1062.25 1044.25 1059 2234724 1435415 6/11/2010 0.52% 1.98% 32.04% 6/14/2010 1061.5 1075.75 1058.25 1060.25 2411842 1874813 6/14/2010 0.12% 1.94% 31.46% 6/15/2010 1059.75 1085.5 1058.25 1083.25 2694530 2199082 6/15/2010 2.17% 2.01% 32.60% 6/16/2010 1083.25 1088.75 1074 1083.5 2522048 2425040 6/16/2010 0.02% 1.99% 32.19% 6/17/2010 1084 1091.5 1074.75 1085.75 2715158 2508842 6/17/2010 0.21% 1.98% 32.05% 6/18/2010 1085.5 1090.75 1082.25 1084.25 1631682 2533026 6/18/2010 (0.14%) 1.77% 28.73% 6/21/2010 1090 1103.5 1077.25 1084.5 2162081 2571881 6/21/2010 0.02% 1.75% 28.38% 6/22/2010 1084.5 1091 1063.5 1064.5 2286571 2601822 6/22/2010 (1.84%) 1.78% 28.85% 6/23/2010 1064.75 1071.75 1054.25 1061.5 2235636 2592658 6/23/2010 (0.28%) 1.78% 28.88% 6/24/2010 1060.5 1065 1040.5 1044.5 2551855 2657033 6/24/2010 (1.60%) 1.80% 29.21% 6/25/2010 1044.25 1053.5 1036.75 1048.75 2454671 2687382 6/25/2010 0.41% 1.58% 25.49% 6/28/2010 1048.25 1053.75 1040.5 1045 1686899 2679807 6/28/2010 (0.36%) 1.56% 25.19% 6/29/2010 1044.5 1048.75 1004.25 1009.25 3109449 2742306 6/29/2010 (3.42%) 1.69% 27.34% 6/30/2010 1009.25 1018.5 997 1000.5 2622061 2762700 6/30/2010 (0.87%) 1.57% 25.33%

7/1/2010 1000.5 1003.75 980 995.75 3354900 2828763 7/1/2010 (0.47%) 1.55% 25.08% 7/2/2010 996.25 1006.5 984.75 988.25 2135335 2825204 7/2/2010 (0.75%) 1.37% 22.15% 7/6/2010 985.75 1012.5 976.75 998.25 2431642 2863819 7/6/2010 1.01% 1.35% 21.80% 7/7/2010 998 1033.75 990.25 1033.25 2556140 2834603 7/7/2010 3.51% 1.55% 25.09% 7/8/2010 1032.75 1042.5 1028 1041 2112208 2775844 7/8/2010 0.75% 1.56% 25.17% 7/9/2010 1040.75 1049 1037.25 1046.5 1421814 2747468 7/9/2010 0.53% 1.43% 23.13%

7/12/2010 1046.5 1051.25 1039.5 1050.5 1382638 2782993 7/12/2010 0.38% 1.43% 23.09% 7/13/2010 1050 1070 1047 1063.75 2001017 2800205 7/13/2010 1.26% 1.46% 23.56% 7/14/2010 1069 1073 1057.5 1065 1940692 2770538 7/14/2010 0.12% 1.37% 22.11% 7/15/2010 1065.25 1073.25 1050.25 1064.5 2416608 2773274 7/15/2010 (0.05%) 1.37% 22.10% 7/16/2010 1064.5 1068.75 1033 1037 2503643 2756881 7/16/2010 (2.58%) 1.47% 23.84% 7/19/2010 1035.75 1045 1031 1037.75 1760879 2785149 7/19/2010 0.07% 1.47% 23.87%

7/20/2010 1037.25 1054.75 1024.75 1054 2275816 2796302 7/20/2010 1.57% 1.53% 24.71% 7/21/2010 1053.5 1061.75 1035 1038 2440958 2791287 7/21/2010 (1.52%) 1.51% 24.43% 7/22/2010 1037.25 1068.5 1035.25 1061.75 2178892 2775061 7/22/2010 2.29% 1.60% 25.91% 7/23/2010 1061.25 1075.5 1058 1074.5 2091081 2770900 7/23/2010 1.20% 1.57% 25.48% 7/26/2010 1074.5 1085.75 1071 1083.5 1543914 2745169 7/26/2010 0.84% 1.58% 25.59% 7/27/2010 1083.25 1092.75 1080 1085 1822245 2758792 7/27/2010 0.14% 1.58% 25.51% 7/28/2010 1084.5 1089.75 1073.25 1076 1641500 2746022 7/28/2010 (0.83%) 1.35% 21.91% 7/29/2010 1076.5 1087 1062.75 1071 2250104 2761379 7/29/2010 (0.46%) 1.34% 21.65% 7/30/2010 1070.25 1077.5 1057.5 1072.25 2133582 2709258 7/30/2010 0.12% 1.32% 21.45%

8/2/2010 1078.5 1098.25 1075.75 1095.75 1610959 2730487 8/2/2010 2.19% 1.36% 21.95% 8/3/2010 1095.75 1096.75 1087.25 1092.25 1493524 2716644 8/3/2010 (0.32%) 1.36% 22.07% 8/4/2010 1092 1100 1086.25 1098.5 1591800 2699304 8/4/2010 0.57% 1.16% 18.80% 8/5/2010 1098.75 1101.75 1089.5 1097.5 1340145 2710663 8/5/2010 (0.09%) 1.16% 18.77% 8/6/2010 1097.5 1101 1077.75 1093.5 2177376 2713680 8/6/2010 (0.36%) 1.17% 18.88% 8/9/2010 1093.5 1100.75 1090.5 1099.5 998906 2717711 8/9/2010 0.55% 1.17% 18.91%

8/10/2010 1099.25 1099.75 1082.25 1093.75 2029717 2716708 8/10/2010 (0.52%) 1.15% 18.68% 8/11/2010 1093.25 1093.75 1058.5 1059 2638258 2747067 8/11/2010 (3.18%) 1.37% 22.21% 8/12/2010 1059 1061.5 1044.5 1053.25 2180112 2746057 8/12/2010 (0.54%) 1.38% 22.30% 8/13/2010 1053.5 1063 1046.5 1050 1479393 2726008 8/13/2010 (0.31%) 1.24% 20.14% 8/16/2010 1051.5 1055.5 1040.25 1051 1612131 2765067 8/16/2010 0.10% 1.24% 20.14% 8/17/2010 1051.25 1072.5 1048.5 1063 1779783 2787274 8/17/2010 1.14% 1.22% 19.76% 8/18/2010 1063 1072.5 1057.75 1060.75 1814778 2752050 8/18/2010 (0.21%) 1.17% 18.88% 8/19/2010 1061 1069 1042.5 1045.25 2433838 2815775 8/19/2010 (1.46%) 1.10% 17.77% 8/20/2010 1044.75 1050 1035.75 1044.25 1806978 2792043 8/20/2010 (0.10%) 1.06% 17.10% 8/23/2010 1044.25 1054.25 1038.25 1039.5 1567358 2822978 8/23/2010 (0.45%) 1.03% 16.72% 8/24/2010 1039.5 1039.75 1018 1023.75 2466756 2879240 8/24/2010 (1.52%) 1.07% 17.31% 8/25/2010 1024 1031.75 1011 1028.5 2478780 2880019 8/25/2010 0.46% 1.07% 17.38% 8/26/2010 1029.25 1035.75 1017 1018.75 1994211 2917867 8/26/2010 (0.95%) 1.09% 17.56% 8/27/2010 1017.75 1038.5 1011.25 1037.75 2541324 2919615 8/27/2010 1.87% 1.18% 19.13% 8/30/2010 1037.75 1046.75 1018.5 1019 1506592 2930569 8/30/2010 (1.81%) 1.10% 17.79% 8/31/2010 1019 1028.25 1011.5 1022.25 2516451 2964455 8/31/2010 0.32% 1.11% 17.96%

9/1/2010 1025.75 1056.5 1024.75 1055.75 2355074 2901867 9/1/2010 3.28% 1.36% 22.03% 9/2/2010 1055.5 1064.5 1050.5 1063.5 1601762 2875870 9/2/2010 0.73% 1.38% 22.28% 9/3/2010 1063.75 1078.5 1060.25 1077.5 2017072 2850566 9/3/2010 1.32% 1.41% 22.88% 9/7/2010 1078 1081.25 1063.75 1065.25 1751617 2803647 9/7/2010 (1.14%) 1.43% 23.07% 9/8/2010 1065.5 1077 1060.25 1073.25 2001331 2602936 9/8/2010 0.75% 1.44% 23.24% 9/9/2010 1073 1085.75 1070.75 1076.25 1133889 904547 9/9/2010 0.28% 1.24% 20.05%

9/10/2010 1076.5 1084.5 1074.25 1083.75 1530259 1367848 9/10/2010 0.70% 1.24% 20.01% 9/13/2010 1088.75 1097.75 1086.75 1095 1998170 1793046 9/13/2010 1.04% 1.25% 20.18% 9/14/2010 1094.5 1101.25 1089 1094.5 2304737 2127504 9/14/2010 (0.05%) 1.25% 20.20% 9/15/2010 1094.25 1100.25 1087.75 1099.5 2083703 2372341 9/15/2010 0.46% 1.23% 19.91% 9/16/2010 1099.75 1102.75 1091.5 1101.25 1866295 2453572 9/16/2010 0.16% 1.23% 19.86% 9/17/2010 1101.5 1111.5 1095.75 1098.5 1933484 2436902 9/17/2010 (0.25%) 1.17% 18.93% 9/20/2010 1097.25 1119 1095.75 1115.25 1789965 2432315 9/20/2010 1.52% 1.20% 19.41% 9/21/2010 1115.25 1122.75 1109 1113.5 2098867 2416981 9/21/2010 (0.16%) 1.19% 19.28% 9/22/2010 1113.75 1119 1105.25 1108.5 1957234 2514158 9/22/2010 (0.45%) 1.12% 18.21% 9/23/2010 1108.75 1113.25 1096 1099.25 2190002 2515427 9/23/2010 (0.83%) 1.16% 18.75% 9/24/2010 1099.25 1123.25 1097.25 1122 1846093 2561544 9/24/2010 2.07% 1.18% 19.07% 9/27/2010 1122.75 1128.5 1115.75 1116.5 1343049 2557181 9/27/2010 (0.49%) 1.15% 18.63% 9/28/2010 1116.75 1124.75 1106 1120.5 2305031 2566485 9/28/2010 0.36% 1.03% 16.68% 9/29/2010 1120.5 1125.5 1114.25 1119.75 1860633 2582239 9/29/2010 (0.07%) 1.04% 16.79% 9/30/2010 1119.75 1132.25 1110 1115.5 2825790 2536476 9/30/2010 (0.38%) 0.81% 13.16% 10/1/2010 1115.5 1125.25 1113.25 1121 2065971 2546627 10/1/2010 0.49% 0.81% 13.08% 10/4/2010 1121 1122.75 1105.75 1113.5 1849807 2569442 10/4/2010 (0.67%) 0.79% 12.85% 10/5/2010 1113.5 1137.5 1111.5 1133.5 2203058 2638930 10/5/2010 1.80% 0.81% 13.13% 10/6/2010 1133.75 1138.75 1129.75 1134.5 1720880 2623535 10/6/2010 0.09% 0.81% 13.04% 10/7/2010 1134.5 1142.5 1126 1135.25 1988730 2625005 10/7/2010 0.07% 0.81% 13.06% 10/8/2010 1135.25 1142.75 1124.25 1139.25 1969643 2627827 10/8/2010 0.35% 0.80% 12.97%

### 1140.25 1143.75 1136.5 1141 1005696 2640554 ### 0.15% 0.78% 12.62% ### 1141.25 1147.75 1130.5 1143.25 1941433 2646446 ### 0.20% 0.78% 12.58% ### 1144 1159.75 1143 1153 2163266 2723060 ### 0.85% 0.79% 12.77% ### 1153.5 1159.5 1141.25 1152.25 2400204 2711338 ### (0.07%) 0.79% 12.81% ### 1152.75 1158.75 1141.75 1153.75 2644031 2675728 ### 0.13% 0.78% 12.69% ### 1153 1161 1143.5 1157 1465558 2688392 ### 0.28% 0.72% 11.73% ### 1157.5 1158.25 1134.25 1142.5 3065772 2681018 ### (1.25%) 0.79% 12.79%

### 1142.75 1158.75 1139.25 1153.5 2289137 2707547 ### 0.96% 0.80% 12.93% ### 1153.5 1165 1146 1154.5 2408540 2689222 ### 0.09% 0.76% 12.33% ### 1154 1160.25 1152 1159.45 1204824 2671093 ### 0.43% 0.63% 10.24% ### 1159.5 1171.75 1159.25 1161.5 1752840 2679509 ### 0.18% 0.61% 9.93% ### 1160.75 1163 1152.75 1161.5 1743843 2686156 ### 0.00% 0.61% 9.93% ### 1162 1165 1146.5 1157.5 2246880 2690222 ### (0.34%) 0.62% 10.08% ### 1157.25 1166.25 1152.25 1158 2014979 2668557 ### 0.04% 0.61% 9.87% ### 1158 1161.25 1150.75 1158.5 1751544 2671762 ### 0.04% 0.61% 9.82%

11/1/2010 1158.5 1171.5 1152.5 1161.75 2032082 2670465 11/1/2010 0.28% 0.57% 9.29% 11/2/2010 1161.5 1172.25 1159.5 1171.5 1573659 2694988 11/2/2010 0.84% 0.46% 7.52% 11/3/2010 1171.5 1176.75 1158.25 1176 2361808 2683550 11/3/2010 0.38% 0.47% 7.55% 11/4/2010 1176.25 1197.5 1174 1197.25 2301698 2748912 11/4/2010 1.81% 0.59% 9.55% 11/5/2010 1197 1203.25 1191.25 1200.75 2301698 2735053 11/5/2010 0.29% 0.59% 9.55% 11/8/2010 1199.25 1201 1193.5 1198.75 1542756 2809190 11/8/2010 (0.17%) 0.60% 9.67% 11/9/2010 1198 1203.5 1185 1189.75 2324133 2778956 11/9/2010 (0.75%) 0.64% 10.33%

### 1189.25 1195.75 1180.5 1192.75 2483583 2797314 ### 0.25% 0.62% 10.03% ### 1192.25 1192.5 1180.75 1189.75 1775665 2806244 ### (0.25%) 0.62% 10.11% ### 1189.25 1190.5 1170.25 1174.25 2766115 2812753 ### (1.30%) 0.71% 11.42% ### 1174.25 1184.5 1171.25 1174.5 2071297 2827290 ### 0.02% 0.70% 11.40% ### 1174 1174 1149.75 1153.5 3168883 2831177 ### (1.79%) 0.76% 12.38% ### 1154.5 1160.75 1152 1156.25 2021219 2779026 ### 0.24% 0.74% 11.91% ### 1156.5 1177.75 1155.75 1176.5 2067180 2808354 ### 1.75% 0.83% 13.47% ### 1176.25 1178.75 1166.25 1177 1733603 2794626 ### 0.04% 0.83% 13.41% ### 1181.5 1184.75 1161.25 1176.75 2212329 2773910 ### (0.02%) 0.83% 13.41% ### 1175.75 1176.5 1153.5 1157 2456997 2778957 ### (1.68%) 0.92% 14.83% ### 1156.75 1176.25 1154.25 1175.25 1821455 2782893 ### 1.58% 0.98% 15.84% ### 1177.75 1179.25 1161.25 1162 963332 2773708 ### (1.13%) 1.02% 16.44% ### 1162 1172.5 1151 1165.25 2491942 2771661 ### 0.28% 1.02% 16.46% ### 1165.25 1167 1151.75 1158.25 3089404 2792037 ### (0.60%) 1.02% 16.59%

12/1/2010 1158.25 1186.5 1155 1183.25 2346276 2827756 12/1/2010 2.16% 1.12% 18.13% 12/2/2010 1182.75 1202 1180.75 1201.5 2037342 2845193 12/2/2010 1.54% 1.17% 18.89% 12/3/2010 1201.5 1206 1191.75 1202.25 1890658 2855263 12/3/2010 0.06% 1.10% 17.76% 12/6/2010 1202.25 1205.5 1195 1200.75 1326050 2803507 12/6/2010 (0.12%) 1.10% 17.74% 12/7/2010 1201.5 1213.75 1197.75 1202 2449523 2743781 12/7/2010 0.10% 1.10% 17.73% 12/8/2010 1201.5 1208 1196 1207.5 2142544 2518842 12/8/2010 0.46% 1.08% 17.54% 12/9/2010 1207 1216.75 1205 1211.75 1073405 871881 12/9/2010 0.35% 1.08% 17.56%

### 1211.5 1220 1210.5 1219.75 1450096 1279636 ### 0.66% 1.09% 17.63% ### 1219 1225.75 1215.75 1220 1824807 1594522 ### 0.02% 1.04% 16.77% ### 1219.75 1226 1216.5 1220.5 2008662 1991813 ### 0.04% 1.04% 16.77% ### 1220.5 1223.25 1212.5 1215.75 2114241 2245053 ### (0.39%) 0.94% 15.18% ### 1215.75 1223.5 1211.25 1222.25 1738245 2397297 ### 0.53% 0.94% 15.21% ### 1222.25 1224.75 1218.25 1222.25 1340620 2392696 ### 0.00% 0.87% 14.16% ### 1223.75 1229.5 1217.75 1225 1145804 2422001 ### 0.22% 0.87% 14.15% ### 1224.75 1235 1224.5 1234.5 943293 2433418 ### 0.78% 0.88% 14.27% ### 1233.75 1238.75 1232.75 1238.25 664450 2433411 ### 0.30% 0.76% 12.24% ### 1238.25 1239.5 1233 1236.75 594048 2437477 ### (0.12%) 0.70% 11.40% ### 1233.25 1238 1229.25 1237 587701 2458879 ### 0.02% 0.63% 10.16% ### 1237.25 1240.25 1235.25 1237.75 553798 2477060 ### 0.06% 0.63% 10.20% ### 1237.75 1242.25 1237 1239.5 588441 2475165 ### 0.14% 0.60% 9.63% ### 1239.5 1241.25 1235.25 1238.25 713588 2469321 ### (0.10%) 0.42% 6.82% ### 1238 1241.5 1233.25 1236.75 667046 2478376 ### (0.12%) 0.29% 4.73%

1/3/2011 1236.75 1256.25 1236.75 1249 1591034 2500721 1/3/2011 0.99% 0.35% 5.62% 1/4/2011 1248.5 1253.75 1242 1249 1778621 2495528 1/4/2011 0.00% 0.34% 5.54% 1/5/2011 1249.25 1257.5 1239.5 1255.5 1797267 2510775 1/5/2011 0.52% 0.35% 5.65% 1/6/2011 1255.5 1260.75 1250 1254 1614397 2495267 1/6/2011 (0.12%) 0.35% 5.70% 1/7/2011 1253.5 1257.75 1241.5 1251.25 2175596 2505895 1/7/2011 (0.22%) 0.36% 5.85%

1/10/2011 1250 1251.75 1241.75 1249.25 1876415 2507962 1/10/2011 (0.16%) 0.35% 5.63% 1/11/2011 1249.25 1257.5 1247.75 1254.25 1662412 2527804 1/11/2011 0.40% 0.35% 5.70% 1/12/2011 1253.75 1268 1253 1267.25 1604117 2557791 1/12/2011 1.04% 0.40% 6.54% 1/13/2011 1267 1268.25 1260 1265 1671242 2531081 1/13/2011 (0.18%) 0.39% 6.33% 1/14/2011 1265 1273.75 1258 1273.25 1631162 2527355 1/14/2011 0.65% 0.40% 6.43% 1/18/2011 1269.25 1278.75 1266.5 1278.5 1673094 2563543 1/18/2011 0.41% 0.40% 6.42% 1/19/2011 1278.25 1280 1258.75 1262.25 2322868 2586802 1/19/2011 (1.27%) 0.52% 8.40% 1/20/2011 1263 1265.25 1251.25 1260 2534106 2614326 1/20/2011 (0.18%) 0.50% 8.13% 1/21/2011 1259.75 1271.75 1257 1263.5 2012431 2594871 1/21/2011 0.28% 0.50% 8.12%

1/24/2011 1263.25 1273.5 1261.5 1272.25 1635794 2634978 1/24/2011 0.69% 0.52% 8.34% 1/25/2011 1272.25 1275.5 1260.75 1271.25 2360267 2635938 1/25/2011 (0.08%) 0.52% 8.37% 1/26/2011 1271 1280.5 1269.75 1277.25 1609255 2646887 1/26/2011 0.47% 0.52% 8.45% 1/27/2011 1277.5 1282 1273 1279.5 1554851 2634255 1/27/2011 0.18% 0.52% 8.45% 1/28/2011 1279 1283.25 1254.25 1255.25 3238629 2694729 1/28/2011 (1.90%) 0.69% 11.25% 1/31/2011 1255.25 1267.5 1246 1266.25 2314420 2666224 1/31/2011 0.88% 0.72% 11.59%

2/1/2011 1266.25 1289.75 1265 1286.5 2089240 2690241 2/1/2011 1.60% 0.77% 12.40% 2/2/2011 1286 1289.25 1281.75 1283.75 1396167 2714368 2/2/2011 (0.21%) 0.77% 12.46% 2/3/2011 1284 1289.5 1275.25 1287 1828391 2692805 2/3/2011 0.25% 0.76% 12.38% 2/4/2011 1287 1292.25 1281.75 1291 1585618 2706640 2/4/2011 0.31% 0.76% 12.36% 2/7/2011 1291 1303.75 1289.75 1299.5 1501112 2730158 2/7/2011 0.66% 0.77% 12.41% 2/8/2011 1298.75 1306 1296.75 1305.5 1453914 2754984 2/8/2011 0.46% 0.76% 12.37% 2/9/2011 1305.25 1305.75 1295.5 1303 1825859 2780883 2/9/2011 (0.19%) 0.77% 12.44%

2/10/2011 1302.25 1304.25 1292.25 1302.5 2055532 2799077 2/10/2011 (0.04%) 0.74% 12.04% 2/11/2011 1302 1312.5 1293.75 1311 1881031 2799214 2/11/2011 0.65% 0.75% 12.11% 2/14/2011 1311 1315 1308.25 1311.5 1171814 2809512 2/14/2011 0.04% 0.74% 11.98% 2/15/2011 1311.75 1313 1306 1310 1457415 2814250 2/15/2011 (0.11%) 0.74% 11.98% 2/16/2011 1310 1319.75 1309.5 1316.75 1801087 2845287 2/16/2011 0.52% 0.67% 10.79% 2/17/2011 1316.75 1323.75 1312.25 1321.5 1677669 2849648 2/17/2011 0.36% 0.66% 10.70% 2/18/2011 1321.5 1326.75 1318.75 1326.25 1516091 2854700 2/18/2011 0.36% 0.66% 10.71% 2/22/2011 1326 1326.25 1294 1298.25 3257861 2898256 2/22/2011 (2.11%) 0.84% 13.53% 2/23/2011 1297.75 1304.25 1281.25 1289.25 3075485 2910101 2/23/2011 (0.69%) 0.85% 13.82% 2/24/2011 1289.5 1294.5 1276.25 1286.5 2903883 2875305 2/24/2011 (0.21%) 0.85% 13.77% 2/25/2011 1286.25 1303.75 1285.25 1302.5 1827557 2871412 2/25/2011 1.24% 0.89% 14.44% 2/28/2011 1302 1312.75 1296.75 1309.75 1941581 2852603 2/28/2011 0.56% 0.76% 12.37%

3/1/2011 1309.75 1320.25 1284.5 1284.75 3054741 2898347 3/1/2011 (1.91%) 0.88% 14.28% 3/2/2011 1285 1297.5 1280 1289.5 2680941 2915339 3/2/2011 0.37% 0.81% 13.11% 3/3/2011 1290 1315.75 1288.75 1313.5 2361733 2887515 3/3/2011 1.86% 0.91% 14.67% 3/4/2011 1313.5 1318.25 1295 1304 2944659 2894251 3/4/2011 (0.72%) 0.92% 14.97% 3/7/2011 1304 1311 1286.5 1292.75 2702700 2897776 3/7/2011 (0.86%) 0.95% 15.31% 3/8/2011 1292.5 1309.5 1289.75 1303.75 2209200 2798341 3/8/2011 0.85% 0.95% 15.44% 3/9/2011 1303.5 1308.75 1295.25 1299.25 2196273 2614534 3/9/2011 (0.35%) 0.95% 15.40%

3/10/2011 1299.75 1301.25 1276.5 1278.25 1844627 945951 3/10/2011 (1.62%) 1.02% 16.44% 3/11/2011 1277.75 1292.5 1267.25 1290 2185696 1310121 3/11/2011 0.92% 1.04% 16.85% 3/14/2011 1287.25 1289.5 1269.75 1279.25 2788791 1639297 3/14/2011 (0.83%) 1.04% 16.86% 3/15/2011 1279.25 1282 1239.75 1264 3992352 2134386 3/15/2011 (1.19%) 1.07% 17.28% 3/16/2011 1263.5 1272.25 1232 1242.75 4540281 2518402 3/16/2011 (1.68%) 1.12% 18.11% 3/17/2011 1243.5 1263.25 1230 1257.5 2979478 2586929 3/17/2011 1.19% 1.15% 18.66% 3/18/2011 1257.25 1276.25 1250.25 1263 2342198 2565944 3/18/2011 0.44% 1.16% 18.70% 3/21/2011 1265 1285 1263.5 1281.75 1488232 2553822 3/21/2011 1.48% 1.21% 19.60% 3/22/2011 1281.25 1285.25 1276.25 1277 1441789 2568898 3/22/2011 (0.37%) 1.12% 18.18% 3/23/2011 1276.5 1284.75 1267.75 1280.75 1939892 2587522 3/23/2011 0.29% 1.12% 18.07% 3/24/2011 1280.75 1295.5 1278 1294 1833298 2603534 3/24/2011 1.03% 1.14% 18.45% 3/25/2011 1293.25 1303.25 1292.75 1298.75 1651563 2598402 3/25/2011 0.37% 1.11% 17.92% 3/28/2011 1298 1304 1290.75 1291 1290490 2631428 3/28/2011 (0.60%) 1.11% 17.91% 3/29/2011 1291.5 1306.5 1289 1305.25 1549071 2650848 3/29/2011 1.10% 1.05% 16.93% 3/30/2011 1305 1316.5 1303.5 1312.75 1407633 2638334 3/30/2011 0.57% 1.05% 16.99% 3/31/2011 1313.25 1314.5 1309.25 1309.75 1521964 2647743 3/31/2011 (0.23%) 0.97% 15.62%

4/1/2011 1309.75 1322.5 1309.25 1316.5 1660075 2635255 4/1/2011 0.52% 0.96% 15.48% 4/4/2011 1315.75 1321.5 1313.25 1318 1273974 2646233 4/4/2011 0.11% 0.93% 15.09% 4/5/2011 1318.5 1323 1311.75 1315.5 1558287 2675137 4/5/2011 (0.19%) 0.92% 14.84% 4/6/2011 1315.75 1325.25 1314.75 1317.75 1656416 2665569 4/6/2011 0.17% 0.91% 14.77% 4/7/2011 1317.75 1324 1311 1317.25 2180272 2671718 4/7/2011 (0.04%) 0.82% 13.31% 4/8/2011 1317.25 1324.5 1307.5 1312.5 1858868 2688459 4/8/2011 (0.36%) 0.81% 13.10%

4/11/2011 1314.5 1319 1305.75 1308.25 1527470 2695169 4/11/2011 (0.32%) 0.79% 12.73% 4/12/2011 1309 1309.25 1294 1297 2078928 2685024 4/12/2011 (0.86%) 0.76% 12.31% 4/13/2011 1297 1307.5 1293.75 1297.5 1919662 2667514 4/13/2011 0.04% 0.63% 10.21% 4/14/2011 1298 1302 1287 1299 2027796 2690414 4/14/2011 0.12% 0.59% 9.52% 4/15/2011 1299.25 1308 1294.5 1307.5 1644200 2683332 4/15/2011 0.65% 0.60% 9.64% 4/18/2011 1307 1307.5 1279 1289.75 2255340 2687640 4/18/2011 (1.36%) 0.61% 9.80% 4/19/2011 1289.75 1298.25 1282.75 1297.25 1528995 2693117 4/19/2011 0.58% 0.61% 9.87% 4/20/2011 1297.5 1319.25 1297.25 1317 1871971 2694507 4/20/2011 1.52% 0.69% 11.15% 4/21/2011 1317.25 1326.5 1316.75 1319.75 1276072 2681863 4/21/2011 0.21% 0.66% 10.63% 4/25/2011 1319.25 1324 1316 1319.5 599322 2693363 4/25/2011 (0.02%) 0.65% 10.59% 4/26/2011 1319.5 1335 1316.75 1329.75 1386038 2726416 4/26/2011 0.78% 0.65% 10.54%

4/27/2011 1329.75 1343 1329 1339.75 1386295 2751861 4/27/2011 0.75% 0.63% 10.17% 4/28/2011 1340.25 1347.25 1335.5 1343.75 1706910 2743397 4/28/2011 0.30% 0.62% 10.06% 4/29/2011 1343.75 1352.5 1341.5 1348.5 1272342 2742628 4/29/2011 0.35% 0.62% 10.00%

5/2/2011 1352 1362.25 1343.5 1346.5 1707040 2742024 5/2/2011 (0.15%) 0.61% 9.95% 5/3/2011 1346.5 1347.25 1334.5 1340.75 1674060 2794195 5/3/2011 (0.43%) 0.63% 10.14% 5/4/2011 1340.5 1343.75 1326.25 1331.75 2382666 2790443 5/4/2011 (0.67%) 0.65% 10.47% 5/5/2011 1332 1337.5 1314 1323.75 2915006 2758798 5/5/2011 (0.60%) 0.66% 10.73% 5/6/2011 1323 1340.5 1320.5 1323.25 2673077 2751590 5/6/2011 (0.04%) 0.66% 10.73% 5/9/2011 1326 1335 1323.25 1331.5 1666599 2677123 5/9/2011 0.62% 0.67% 10.83%

5/10/2011 1331.25 1345.25 1327.75 1342.5 1571216 2680756 5/10/2011 0.83% 0.68% 11.05% 5/11/2011 1342.5 1347 1321.75 1327.5 2190906 2664963 5/11/2011 (1.12%) 0.70% 11.40% 5/12/2011 1328 1337.5 1317.5 1336.25 2254909 2647161 5/12/2011 0.66% 0.71% 11.56% 5/13/2011 1336 1341.25 1319.25 1322.75 2235430 2650027 5/13/2011 (1.01%) 0.76% 12.30% 5/16/2011 1320.75 1330 1313.5 1314.25 2177046 2666484 5/16/2011 (0.64%) 0.76% 12.38% 5/17/2011 1314 1320.75 1304.75 1314.25 2292146 2688008 5/17/2011 0.00% 0.69% 11.20% 5/18/2011 1315 1329.25 1313.25 1327.25 1612220 2695103 5/18/2011 0.99% 0.71% 11.54% 5/19/2011 1327 1334.25 1323.25 1330.5 1825276 2706744 5/19/2011 0.24% 0.63% 10.25% 5/20/2011 1330.25 1332.75 1315.75 1316.5 2248408 2719462 5/20/2011 (1.05%) 0.68% 10.97% 5/23/2011 1314.75 1315.75 1299.5 1304 2054242 2752316 5/23/2011 (0.95%) 0.71% 11.49% 5/24/2011 1303.5 1311.25 1300.5 1302.25 1860601 2761199 5/24/2011 (0.13%) 0.68% 11.04% 5/25/2011 1301.75 1313.25 1291 1305.25 2100699 2780614 5/25/2011 0.23% 0.66% 10.64% 5/26/2011 1305.25 1316.25 1301.25 1315.25 2286732 2762061 5/26/2011 0.77% 0.68% 11.03% 5/27/2011 1315.25 1322.5 1313.25 1318.75 1393298 2775088 5/27/2011 0.27% 0.68% 10.98% 5/31/2011 1319.75 1334.5 1317 1332.75 1927228 2815719 5/31/2011 1.06% 0.73% 11.77%

6/1/2011 1332.75 1336.5 1300 1300.75 2681845 2835132 6/1/2011 (2.40%) 0.90% 14.49% 6/2/2011 1302 1306.5 1293 1301.25 2433178 2815208 6/2/2011 0.04% 0.89% 14.37% 6/3/2011 1301 1302.25 1283.25 1285 2677734 2930588 6/3/2011 (1.25%) 0.92% 14.85% 6/6/2011 1287.5 1287.75 1272 1273.75 2185300 2889057 6/6/2011 (0.88%) 0.93% 15.08% 6/7/2011 1274 1284.25 1271.25 1273.5 2069553 2803593 6/7/2011 (0.02%) 0.91% 14.78% 6/8/2011 1273.75 1276.5 1265 1265.75 2695851 2671828 6/8/2011 (0.61%) 0.88% 14.29% 6/9/2011 1267.25 1282.75 1264 1276.25 978448 808832 6/9/2011 0.83% 0.89% 14.47%

6/10/2011 1276.5 1277.75 1256 1258 2355546 1201982 6/10/2011 (1.43%) 0.91% 14.74% 6/13/2011 1259.25 1266 1253.75 1260.5 2517553 1584108 6/13/2011 0.20% 0.90% 14.59% 6/14/2011 1261.75 1281.25 1259.5 1278.75 2834353 2117784 6/14/2011 1.45% 0.97% 15.70% 6/15/2011 1278 1278 1250 1254.25 3639073 2472316 6/15/2011 (1.92%) 1.05% 16.96% 6/16/2011 1255.25 1263.25 1246.5 1257.75 3263670 2557724 6/16/2011 0.28% 1.02% 16.45% 6/17/2011 1258 1271.5 1252.75 1260.25 2335210 2572371 6/17/2011 0.20% 1.01% 16.43% 6/20/2011 1259.25 1269.5 1250.5 1268 1675608 2540173 6/20/2011 0.61% 1.02% 16.44% 6/21/2011 1267.5 1287 1266 1282.25 2075568 2531071 6/21/2011 1.12% 1.04% 16.81% 6/22/2011 1282 1288 1273.75 1274 1872931 2524036 6/22/2011 (0.64%) 1.05% 16.93% 6/23/2011 1274.25 1275 1251.25 1271.25 3316080 2548765 6/23/2011 (0.22%) 1.04% 16.89% 6/24/2011 1271.75 1280.25 1255.5 1258.25 2499136 2575596 6/24/2011 (1.02%) 1.04% 16.83% 6/27/2011 1259.25 1274.25 1251.25 1270.5 2000732 2536579 6/27/2011 0.97% 1.07% 17.29% 6/28/2011 1271.25 1289.25 1265.75 1288.75 1913881 2507415 6/28/2011 1.44% 1.09% 17.71% 6/29/2011 1287.75 1299.75 1285.75 1298.5 2489063 2484633 6/29/2011 0.76% 0.98% 15.79% 6/30/2011 1298.25 1311.75 1296.5 1309.75 1875270 2490419 6/30/2011 0.87% 0.99% 16.10%

7/1/2011 1309.75 1330.75 1306.75 1329 1955127 2468230 7/1/2011 1.47% 1.00% 16.12% 7/5/2011 1328.25 1332 1322.5 1331 1729821 2485036 7/5/2011 0.15% 0.96% 15.62% 7/6/2011 1330.25 1335 1320.75 1330 1819425 2486568 7/6/2011 (0.08%) 0.97% 15.63% 7/7/2011 1330.25 1347 1330 1346 1678156 2502471 7/7/2011 1.20% 0.97% 15.68% 7/8/2011 1345.75 1348.75 1323.5 1336 2253551 2525676 7/8/2011 (0.74%) 0.99% 15.99%

7/11/2011 1333.5 1333.75 1306 1312.75 2432258 2558138 7/11/2011 (1.74%) 1.02% 16.47% 7/12/2011 1312.25 1317.5 1289.5 1305 2888474 2589528 7/12/2011 (0.59%) 1.03% 16.73% 7/13/2011 1305 1322 1301.5 1306.5 2315093 2579101 7/13/2011 0.11% 0.99% 16.01% 7/14/2011 1306.5 1317.5 1296.25 1301 2877782 2575806 7/14/2011 (0.42%) 0.88% 14.22% 7/15/2011 1302 1309.75 1294.75 1309.25 2298613 2547985 7/15/2011 0.63% 0.88% 14.31% 7/18/2011 1308.75 1309 1285.5 1294.75 2168734 2565507 7/18/2011 (1.11%) 0.93% 15.07% 7/19/2011 1295.75 1318.5 1294.5 1315.5 2098625 2585860 7/19/2011 1.60% 0.98% 15.90% 7/20/2011 1315.5 1324 1313.5 1315.5 1637321 2594680 7/20/2011 0.00% 0.96% 15.51% 7/21/2011 1316 1337.75 1309.25 1336.75 2311771 2575395 7/21/2011 1.62% 0.99% 16.09% 7/22/2011 1335.5 1342 1327 1335.25 1478170 2559590 7/22/2011 (0.11%) 0.99% 16.06% 7/25/2011 1324.25 1334.5 1316.25 1327.75 1640963 2567417 7/25/2011 (0.56%) 0.97% 15.63% 7/26/2011 1327.75 1334 1319.75 1320.5 1698186 2558292 7/26/2011 (0.55%) 0.97% 15.66% 7/27/2011 1320.25 1322.75 1292.25 1293.25 2535676 2622989 7/27/2011 (2.06%) 1.05% 16.92% 7/28/2011 1293.5 1307.25 1289.5 1291 2338767 2633648 7/28/2011 (0.17%) 1.03% 16.70%

7/29/2011 1292 1295 1272.75 1282.75 2889931 2689055 7/29/2011 (0.64%) 1.02% 16.48% 8/1/2011 1300.25 1304 1264.5 1274 3020191 2717702 8/1/2011 (0.68%) 0.96% 15.46% 8/2/2011 1274 1279.25 1241 1241.5 3293753 2786136 8/2/2011 (2.55%) 1.08% 17.55% 8/3/2011 1242.5 1252.25 1224.5 1248.75 3815275 2837954 8/3/2011 0.58% 1.10% 17.85% 8/4/2011 1248.5 1258.5 1187.5 1193 5039775 2960288 8/4/2011 (4.46%) 1.39% 22.43% 8/5/2011 1193.5 1213.25 1157.5 1192 6160540 2938984 8/5/2011 (0.08%) 1.39% 22.49% 8/8/2011 1161.5 1183.25 1103.75 1105.5 6173318 3242540 8/8/2011 (7.26%) 2.03% 32.93% 8/9/2011 1107.25 1169.75 1071.25 1166 6285917 3337317 8/9/2011 5.47% 2.48% 40.08%

8/10/2011 1165.25 1173 1108 1117.75 4925051 3446782 8/10/2011 (4.14%) 2.60% 42.05% 8/11/2011 1117.25 1178.25 1097.25 1162.75 4482222 3385012 8/11/2011 4.03% 2.81% 45.46% 8/12/2011 1162.5 1181 1141 1171 2720118 3371749 8/12/2011 0.71% 2.81% 45.49% 8/15/2011 1174 1196 1170.5 1192.75 2002026 3367839 8/15/2011 1.86% 2.86% 46.22% 8/16/2011 1190.75 1195.75 1171.75 1186.5 2556621 3169438 8/16/2011 (0.52%) 2.82% 45.60% 8/17/2011 1186 1201 1175.75 1184.25 2112805 3203678 8/17/2011 (0.19%) 2.82% 45.58% 8/18/2011 1183.75 1184.25 1122.5 1137.75 3809916 3363879 8/18/2011 (3.93%) 2.87% 46.46% 8/19/2011 1138 1147.5 1111.75 1118.25 3583223 3390307 8/19/2011 (1.71%) 2.87% 46.51% 8/22/2011 1116.25 1140.75 1105.5 1117.5 2714560 3396068 8/22/2011 (0.07%) 2.88% 46.59% 8/23/2011 1117.75 1155 1112.75 1152.75 3338118 3371817 8/23/2011 3.15% 3.01% 48.76% 8/24/2011 1153.25 1171 1136.75 1166.25 2616278 3395461 8/24/2011 1.17% 3.02% 48.86% 8/25/2011 1165.75 1182.75 1147.25 1151.75 3198280 3429011 8/25/2011 (1.24%) 3.02% 48.92% 8/26/2011 1151.25 1174 1127 1170.25 3053686 3452313 8/26/2011 1.61% 3.06% 49.52% 8/29/2011 1169.75 1203 1166.5 1202.25 1832857 3471251 8/29/2011 2.73% 3.14% 50.79% 8/30/2011 1202.25 1213 1187.75 1199 2576230 3467846 8/30/2011 (0.27%) 3.09% 50.03% 8/31/2011 1198.5 1224 1195.5 1212 3159833 3451099 8/31/2011 1.08% 3.10% 50.16%

9/1/2011 1212 1222.75 1195 1195.5 2656315 3435920 9/1/2011 (1.36%) 2.94% 47.63% 9/2/2011 1195.25 1197.5 1162.75 1163.5 2427798 3540459 9/2/2011 (2.68%) 3.01% 48.65% 9/5/2011 1159.25 1161 1132.5 1139.75 361512 3540459 9/5/2011 (2.04%) 2.54% 41.12% 9/6/2011 1137.25 1161 1130.25 1158.75 3522564 3594453 9/6/2011 1.67% 2.25% 36.40% 9/7/2011 1158.75 1194 1158 1193.25 2595150 3415957 9/7/2011 2.98% 2.12% 34.32% 9/8/2011 1193.75 1198 1176.25 1180 1326103 831091 9/8/2011 (1.11%) 1.96% 31.66% 9/9/2011 1180 1188.25 1141 1152.25 3165441 1392352 9/9/2011 (2.35%) 2.02% 32.76%

9/12/2011 1136 1158 1123.5 1157.25 3612118 1887934 9/12/2011 0.43% 1.98% 32.00% 9/13/2011 1156.75 1170.5 1139 1165.25 3694565 2407037 9/13/2011 0.69% 1.98% 32.10% 9/14/2011 1165.5 1196.25 1148 1182.25 3552069 2754383 9/14/2011 1.46% 2.01% 32.57% 9/15/2011 1182.25 1205.5 1175.75 1204.25 3024123 2883574 9/15/2011 1.86% 1.82% 29.51% 9/16/2011 1203 1214.5 1194.75 1211.75 2661191 2930734 9/16/2011 0.62% 1.76% 28.51% 9/19/2011 1199.25 1203.75 1181.5 1197.75 2446620 2897053 9/19/2011 (1.16%) 1.79% 29.03% 9/20/2011 1196.75 1214.5 1185.25 1196 2614553 2918960 9/20/2011 (0.15%) 1.67% 27.04% 9/21/2011 1196.75 1203.75 1155 1155.75 3254771 2936112 9/21/2011 (3.37%) 1.83% 29.65% 9/22/2011 1155.25 1159 1106.75 1123.5 4741905 3081477 9/22/2011 (2.79%) 1.92% 31.02% 9/23/2011 1124.25 1138.5 1102 1129.75 3365634 3067211 9/23/2011 0.56% 1.88% 30.45% 9/26/2011 1122 1159 1115 1158.5 3089036 3062794 9/26/2011 2.54% 1.87% 30.21% 9/27/2011 1157.5 1190 1155 1169.5 3258954 2974168 9/27/2011 0.95% 1.88% 30.47% 9/28/2011 1169 1181.75 1143.5 1148.75 2802438 2976156 9/28/2011 (1.77%) 1.90% 30.69% 9/29/2011 1148.25 1170.75 1133.5 1156.25 2975702 2956018 9/29/2011 0.65% 1.89% 30.55% 9/30/2011 1157.25 1159.75 1121.5 1126 2980938 3006367 9/30/2011 (2.62%) 1.88% 30.48% 10/3/2011 1123 1133.5 1085.25 1086.25 3504183 3115740 10/3/2011 (3.53%) 1.99% 32.18% 10/4/2011 1087.5 1119.75 1068 1113.5 4190407 3139609 10/4/2011 2.51% 2.04% 33.00% 10/5/2011 1114.5 1141.25 1106.5 1135 3039981 3115881 10/5/2011 1.93% 1.97% 31.81% 10/6/2011 1135 1160.5 1129 1157.5 2903759 3116403 10/6/2011 1.98% 2.01% 32.59% 10/7/2011 1157.25 1173.75 1144.75 1155 2865466 3053178 10/7/2011 (0.22%) 1.94% 31.44%

### 1157.75 1192.25 1156.5 1191 1776333 2994500 ### 3.12% 2.06% 33.35% ### 1190.5 1194.75 1180.75 1189.5 1953734 3007577 ### (0.13%) 2.06% 33.31% ### 1187.5 1216 1180.75 1198.25 2558741 3007577 ### 0.74% 2.04% 33.01% ### 1198.5 1200 1195.5 1196 59459 2983719 ### (0.19%) 2.00% 32.31%

90 Day Hvol

Annualized StDev AnnualizedDate Close 20HVol 90HVol

1/7/2010 1,102.50 9.998% 16.516% 1/8/2010 1,106.50 9.953% 16.503%

1/11/2010 1,107.50 9.870% 16.094% 1/12/2010 1,099.00 10.376% 16.193% 1/13/2010 1,106.50 10.487% 16.146% 1/14/2010 1,110.25 10.272% 16.074% 1/15/2010 1,097.25 11.396% 16.283% 1/19/2010 1,110.75 11.102% 16.264% 1/20/2010 1,099.00 12.044% 16.273% 1/21/2010 1,076.00 14.136% 16.648% 1/22/2010 1,056.00 15.538% 16.982% 1/25/2010 1,057.50 15.528% 16.929% 1/26/2010 1,052.25 15.348% 16.307% 1/27/2010 1,059.50 15.632% 15.672% 1/28/2010 1,044.25 16.336% 14.811% 1/29/2010 1,035.50 16.474% 14.894%

2/1/2010 1,051.25 17.342% 15.197% 2/2/2010 1,062.25 16.586% 15.303% 2/3/2010 1,061.50 16.496% 14.961% 2/4/2010 1,026.75 19.933% 16.497% 2/5/2010 1,024.75 19.744% 15.637% 2/8/2010 1,021.00 19.553% 15.651% 2/9/2010 1,031.25 20.136% 15.777%

2/10/2010 1,028.25 20.073% 15.692% 2/11/2010 1,041.50 20.605% 15.907% 2/12/2010 1,044.00 20.566% 15.631% 2/16/2010 1,058.25 21.125% 15.899% 2/17/2010 1,064.50 20.661% 15.947% 2/18/2010 1,070.50 20.571% 15.736% 2/19/2010 1,071.25 19.157% 15.709% 2/22/2010 1,072.50 17.823% 15.476% 2/23/2010 1,062.25 18.212% 15.608% 2/24/2010 1,068.50 18.204% 15.612% 2/25/2010 1,067.25 18.067% 15.126% 2/26/2010 1,068.50 17.163% 15.094%

3/1/2010 1,079.50 17.055% 15.002% 3/2/2010 1,082.50 16.319% 15.011% 3/3/2010 1,083.50 15.959% 14.871% 3/4/2010 1,087.25 15.967% 14.762% 3/5/2010 1,101.50 10.031% 14.971% 3/8/2010 1,102.00 9.887% 14.692% 3/9/2010 1,105.50 9.491% 14.671%

3/10/2010 1,110.75 9.216% 14.655% 3/11/2010 1,115.75 8.862% 14.640% 3/12/2010 1,116.25 8.288% 14.614% 3/15/2010 1,115.50 8.417% 14.580% 3/16/2010 1,124.50 7.684% 14.659% 3/17/2010 1,130.75 7.667% 14.481% 3/18/2010 1,131.00 7.664% 14.475% 3/19/2010 1,126.00 8.068% 14.396% 3/22/2010 1,131.75 8.103% 14.399% 3/23/2010 1,139.25 6.727% 14.448% 3/24/2010 1,134.25 7.236% 14.449% 3/25/2010 1,132.50 7.267% 14.457% 3/26/2010 1,133.25 7.286% 14.451% 3/29/2010 1,138.50 6.770% 14.474% 3/30/2010 1,139.25 6.809% 14.278% 3/31/2010 1,135.00 7.163% 13.912%

1.02% 16.52% 4/1/2010 1,143.50 7.395% 13.976% 1.02% 16.50% 4/5/2010 1,152.75 6.584% 14.060% 0.99% 16.09% 4/6/2010 1,155.50 6.547% 14.047%

1/7/2

010

2/9/2

010

3/14/2

010

4/16/2

010

5/19/2

010

6/21/2

010

7/24/2

010

8/26/2

010

9/28/2

010

10/31/2

010

12/3/2

010

1/5/2

011

2/7/2

011

3/12/2

011

4/14/2

011

5/17/2

011

6/19/2

011

7/22/2

011

8/24/2

011

9/26/2

0111,000.00

1,050.00

1,100.00

1,150.00

1,200.00

1,250.00

1,300.00

1,350.00

1,400.00

0.000%

10.000%

20.000%

30.000%

40.000%

50.000%

60.000%

Close

20HVol

90HVol

1.00% 16.19% 4/7/2010 1,148.75 7.179% 14.102% 1.00% 16.15% 4/8/2010 1,153.50 7.149% 14.121% 0.99% 16.07% 4/9/2010 1,162.25 7.387% 14.078% 1.01% 16.28% 4/12/2010 1,162.25 7.403% 14.024% 1.00% 16.26% 4/13/2010 1,162.75 7.358% 14.014% 1.01% 16.27% 4/14/2010 1,176.25 7.850% 13.936% 1.03% 16.65% 4/15/2010 1,178.25 7.750% 13.736% 1.05% 16.98% 4/16/2010 1,160.00 10.021% 13.956% 1.05% 16.93% 4/19/2010 1,165.25 9.840% 13.177% 1.01% 16.31% 4/20/2010 1,175.25 10.081% 12.559% 0.97% 15.67% 4/21/2010 1,170.25 10.148% 12.623% 0.92% 14.81% 4/22/2010 1,171.50 9.911% 12.544% 0.92% 14.89% 4/23/2010 1,182.00 10.172% 12.589% 0.94% 15.20% 4/26/2010 1,178.00 10.358% 12.161% 0.95% 15.30% 4/27/2010 1,150.75 13.704% 13.078% 0.92% 14.96% 4/28/2010 1,159.75 13.953% 12.830% 1.02% 16.50% 4/29/2010 1,175.00 14.503% 12.924% 0.97% 15.64% 4/30/2010 1,153.25 16.059% 13.590% 0.97% 15.65% 5/3/2010 1,168.25 16.474% 11.718% 0.97% 15.78% 5/4/2010 1,142.25 18.428% 12.758% 0.97% 15.69% 5/5/2010 1,133.75 18.501% 12.854% 0.98% 15.91% 5/6/2010 1,092.25 22.507% 15.034% 0.97% 15.63% 5/7/2010 1,076.75 22.524% 15.346% 0.98% 15.90% 5/10/2010 1,126.25 28.833% 17.854% 0.99% 15.95% 5/11/2010 1,122.00 28.836% 17.885% 0.97% 15.74% 5/12/2010 1,139.50 29.123% 17.949% 0.97% 15.71% 5/13/2010 1,126.50 29.315% 18.116% 0.96% 15.48% 5/14/2010 1,105.00 29.569% 18.566% 0.96% 15.61% 5/17/2010 1,104.25 29.464% 18.568% 0.96% 15.61% 5/18/2010 1,088.50 29.436% 18.824% 0.93% 15.13% 5/19/2010 1,079.75 29.479% 18.791% 0.93% 15.09% 5/20/2010 1,039.75 31.741% 20.309% 0.93% 15.00% 5/21/2010 1,054.25 32.109% 20.527% 0.93% 15.01% 5/24/2010 1,040.75 32.203% 20.695% 0.92% 14.87% 5/25/2010 1,042.75 31.636% 20.577% 0.91% 14.76% 5/26/2010 1,031.00 31.344% 20.687% 0.92% 14.97% 5/27/2010 1,070.75 34.627% 22.256% 0.91% 14.69% 5/28/2010 1,058.25 34.330% 22.372% 0.91% 14.67% 6/1/2010 1,039.25 34.033% 22.484% 0.91% 14.66% 6/2/2010 1,066.50 35.267% 23.185% 0.90% 14.64% 6/3/2010 1,073.25 35.391% 23.216% 0.90% 14.61% 6/4/2010 1,035.75 35.174% 24.283% 0.90% 14.58% 6/7/2010 1,017.75 35.340% 24.490% 0.91% 14.66% 6/8/2010 1,029.00 30.675% 24.626% 0.89% 14.48% 6/9/2010 1,025.25 30.676% 24.631% 0.89% 14.48% 6/10/2010 1,053.50 32.023% 25.287% 0.89% 14.40% 6/11/2010 1,059.00 32.038% 25.284% 0.89% 14.40% 6/14/2010 1,060.25 31.461% 25.286% 0.89% 14.45% 6/15/2010 1,083.25 32.601% 25.713% 0.89% 14.45% 6/16/2010 1,083.50 32.193% 25.685% 0.89% 14.46% 6/17/2010 1,085.75 32.054% 25.646% 0.89% 14.45% 6/18/2010 1,084.25 28.726% 25.635% 0.89% 14.47% 6/21/2010 1,084.50 28.382% 25.634% 0.88% 14.28% 6/22/2010 1,064.50 28.845% 25.902% 0.86% 13.91% 6/23/2010 1,061.50 28.882% 25.878% 0.86% 13.98% 6/24/2010 1,044.50 29.210% 26.063% 0.87% 14.06% 6/25/2010 1,048.75 25.495% 26.082% 0.87% 14.05% 6/28/2010 1,045.00 25.190% 26.021% 0.87% 14.10% 6/29/2010 1,009.25 27.338% 26.827% 0.87% 14.12% 6/30/2010 1,000.50 25.333% 26.845% 0.87% 14.08% 7/1/2010 995.75 25.082% 26.839% 0.87% 14.02% 7/2/2010 988.25 22.154% 26.827% 0.87% 14.01% 7/6/2010 998.25 21.798% 26.874% 0.86% 13.94% 7/7/2010 1,033.25 25.093% 27.988% 0.85% 13.74% 7/8/2010 1,041.00 25.175% 28.053%

0.86% 13.96% 7/9/2010 1,046.50 23.128% 27.950% 0.81% 13.18% 7/12/2010 1,050.50 23.088% 27.966% 0.78% 12.56% 7/13/2010 1,063.75 23.555% 27.970% 0.78% 12.62% 7/14/2010 1,065.00 22.108% 27.947% 0.77% 12.54% 7/15/2010 1,064.50 22.105% 27.868% 0.78% 12.59% 7/16/2010 1,037.00 23.845% 28.324% 0.75% 12.16% 7/19/2010 1,037.75 23.867% 28.323% 0.81% 13.08% 7/20/2010 1,054.00 24.711% 28.471% 0.79% 12.83% 7/21/2010 1,038.00 24.426% 28.607% 0.80% 12.92% 7/22/2010 1,061.75 25.910% 28.710% 0.84% 13.59% 7/23/2010 1,074.50 25.484% 28.781% 0.72% 11.72% 7/26/2010 1,083.50 25.590% 28.694% 0.79% 12.76% 7/27/2010 1,085.00 25.511% 28.461% 0.79% 12.85% 7/28/2010 1,076.00 21.908% 28.347% 0.93% 15.03% 7/29/2010 1,071.00 21.652% 28.004% 0.95% 15.35% 7/30/2010 1,072.25 21.447% 27.973% 1.10% 17.85% 8/2/2010 1,095.75 21.946% 27.310% 1.10% 17.88% 8/3/2010 1,092.25 22.068% 27.149% 1.11% 17.95% 8/4/2010 1,098.50 18.795% 25.393% 1.12% 18.12% 8/5/2010 1,097.50 18.772% 25.383% 1.15% 18.57% 8/6/2010 1,093.50 18.881% 25.167% 1.15% 18.57% 8/9/2010 1,099.50 18.910% 25.091% 1.16% 18.82% 8/10/2010 1,093.75 18.675% 24.796% 1.16% 18.79% 8/11/2010 1,059.00 22.215% 25.666% 1.25% 20.31% 8/12/2010 1,053.25 22.296% 25.523% 1.27% 20.53% 8/13/2010 1,050.00 20.139% 25.479% 1.28% 20.69% 8/16/2010 1,051.00 20.139% 24.256% 1.27% 20.58% 8/17/2010 1,063.00 19.760% 24.198% 1.28% 20.69% 8/18/2010 1,060.75 18.877% 24.045% 1.37% 22.26% 8/19/2010 1,045.25 17.770% 24.247% 1.38% 22.37% 8/20/2010 1,044.25 17.096% 24.126% 1.39% 22.48% 8/23/2010 1,039.50 16.716% 22.734% 1.43% 23.18% 8/24/2010 1,023.75 17.312% 22.822% 1.43% 23.22% 8/25/2010 1,028.50 17.383% 22.540% 1.50% 24.28% 8/26/2010 1,018.75 17.564% 21.916% 1.51% 24.49% 8/27/2010 1,037.75 19.130% 22.240% 1.52% 24.63% 8/30/2010 1,019.00 17.788% 21.339% 1.52% 24.63% 8/31/2010 1,022.25 17.956% 21.034% 1.56% 25.29% 9/1/2010 1,055.75 22.027% 22.001% 1.56% 25.28% 9/2/2010 1,063.50 22.278% 22.029% 1.56% 25.29% 9/3/2010 1,077.50 22.876% 21.447% 1.59% 25.71% 9/7/2010 1,065.25 23.066% 21.564% 1.59% 25.69% 9/8/2010 1,073.25 23.241% 21.617% 1.58% 25.65% 9/9/2010 1,076.25 20.047% 21.142% 1.58% 25.63% 9/10/2010 1,083.75 20.011% 21.192% 1.58% 25.63% 9/13/2010 1,095.00 20.178% 21.297% 1.60% 25.90% 9/14/2010 1,094.50 20.196% 21.295% 1.60% 25.88% 9/15/2010 1,099.50 19.911% 21.314% 1.61% 26.06% 9/16/2010 1,101.25 19.856% 20.939% 1.61% 26.08% 9/17/2010 1,098.50 18.926% 20.937% 1.61% 26.02% 9/20/2010 1,115.25 19.414% 20.851% 1.66% 26.83% 9/21/2010 1,113.50 19.276% 20.849% 1.66% 26.84% 9/22/2010 1,108.50 18.209% 20.859% 1.66% 26.84% 9/23/2010 1,099.25 18.749% 19.578% 1.66% 26.83% 9/24/2010 1,122.00 19.070% 19.860% 1.66% 26.87% 9/27/2010 1,116.50 18.629% 19.863% 1.73% 27.99% 9/28/2010 1,120.50 16.683% 19.762% 1.73% 28.05% 9/29/2010 1,119.75 16.793% 19.698% 1.73% 27.95% 9/30/2010 1,115.50 13.161% 18.433% 1.73% 27.97% 10/1/2010 1,121.00 13.075% 18.403% 1.73% 27.97% 10/4/2010 1,113.50 12.850% 18.458% 1.73% 27.95% 10/5/2010 1,133.50 13.127% 18.784% 1.72% 27.87% 10/6/2010 1,134.50 13.041% 18.631% 1.75% 28.32% 10/7/2010 1,135.25 13.065% 18.631% 1.75% 28.32% 10/8/2010 1,139.25 12.969% 18.634%

1.76% 28.47% ### 1,141.00 12.621% 17.727% 1.77% 28.61% ### 1,143.25 12.584% 17.726% 1.77% 28.71% ### 1,153.00 12.766% 17.538% 1.78% 28.78% ### 1,152.25 12.812% 17.181% 1.77% 28.69% ### 1,153.75 12.689% 16.587% 1.76% 28.46% ### 1,157.00 11.726% 16.437% 1.75% 28.35% ### 1,142.50 12.792% 16.616% 1.73% 28.00% ### 1,153.50 12.928% 16.715% 1.73% 27.97% ### 1,154.50 12.325% 16.597% 1.69% 27.31% ### 1,159.45 10.235% 16.561% 1.68% 27.15% ### 1,161.50 9.925% 16.561% 1.57% 25.39% ### 1,161.50 9.931% 15.978% 1.57% 25.38% ### 1,157.50 10.077% 15.981% 1.55% 25.17% ### 1,158.00 9.874% 15.950% 1.55% 25.09% ### 1,158.50 9.817% 15.945% 1.53% 24.80% 11/1/2010 1,161.75 9.290% 15.920% 1.59% 25.67% 11/2/2010 1,171.50 7.520% 15.967% 1.58% 25.52% 11/3/2010 1,176.00 7.554% 15.920% 1.57% 25.48% 11/4/2010 1,197.25 9.553% 14.687% 1.50% 24.26% 11/5/2010 1,200.75 9.548% 14.601% 1.49% 24.20% 11/8/2010 1,198.75 9.669% 14.581% 1.49% 24.04% 11/9/2010 1,189.75 10.325% 14.721% 1.50% 24.25% ### 1,192.75 10.027% 14.588% 1.49% 24.13% ### 1,189.75 10.110% 14.593% 1.40% 22.73% ### 1,174.25 11.418% 14.517% 1.41% 22.82% ### 1,174.50 11.397% 14.508% 1.39% 22.54% ### 1,153.50 12.380% 15.033% 1.35% 21.92% ### 1,156.25 11.913% 14.597% 1.37% 22.24% ### 1,176.50 13.473% 14.941% 1.32% 21.34% ### 1,177.00 13.415% 14.737% 1.30% 21.03% ### 1,176.75 13.414% 14.338% 1.36% 22.00% ### 1,157.00 14.833% 14.260% 1.36% 22.03% ### 1,175.25 15.842% 14.540% 1.33% 21.45% ### 1,162.00 16.435% 13.311% 1.33% 21.56% ### 1,165.25 16.462% 13.258% 1.34% 21.62% ### 1,158.25 16.588% 13.117% 1.31% 21.14% 12/1/2010 1,183.25 18.135% 13.512% 1.31% 21.19% 12/2/2010 1,201.50 18.892% 13.760% 1.32% 21.30% 12/3/2010 1,202.25 17.757% 13.762% 1.32% 21.30% 12/6/2010 1,200.75 17.736% 13.734% 1.32% 21.31% 12/7/2010 1,202.00 17.726% 13.611% 1.29% 20.94% 12/8/2010 1,207.50 17.541% 13.618% 1.29% 20.94% 12/9/2010 1,211.75 17.558% 13.610% 1.29% 20.85% ### 1,219.75 17.628% 13.649% 1.29% 20.85% ### 1,220.00 16.774% 13.624% 1.29% 20.86% ### 1,220.50 16.772% 13.322% 1.21% 19.58% ### 1,215.75 15.176% 13.355% 1.23% 19.86% ### 1,222.25 15.207% 13.317% 1.23% 19.86% ### 1,222.25 14.158% 13.152% 1.22% 19.76% ### 1,225.00 14.147% 12.525% 1.22% 19.70% ### 1,234.50 14.265% 12.517% 1.14% 18.43% ### 1,238.25 12.244% 12.514% 1.14% 18.40% ### 1,236.75 11.396% 12.519% 1.14% 18.46% ### 1,237.00 10.163% 12.469% 1.16% 18.78% ### 1,237.75 10.204% 12.453% 1.15% 18.63% ### 1,239.50 9.634% 12.325% 1.15% 18.63% ### 1,238.25 6.816% 11.850% 1.15% 18.63% ### 1,236.75 4.735% 11.863% 1.10% 17.73% 1/3/2011 1,249.00 5.620% 11.992% 1.10% 17.73% 1/4/2011 1,249.00 5.541% 11.990% 1.08% 17.54% 1/5/2011 1,255.50 5.648% 12.014% 1.06% 17.18% 1/6/2011 1,254.00 5.697% 12.028% 1.02% 16.59% 1/7/2011 1,251.25 5.846% 11.961% 1.02% 16.44% 1/10/2011 1,249.25 5.630% 11.970% 1.03% 16.62% 1/11/2011 1,254.25 5.704% 11.982%

1.03% 16.72% 1/12/2011 1,267.25 6.544% 12.124% 1.03% 16.60% 1/13/2011 1,265.00 6.328% 11.773% 1.02% 16.56% 1/14/2011 1,273.25 6.427% 11.698% 1.02% 16.56% 1/18/2011 1,278.50 6.419% 11.708% 0.99% 15.98% 1/19/2011 1,262.25 8.400% 12.076% 0.99% 15.98% 1/20/2011 1,260.00 8.127% 12.094% 0.99% 15.95% 1/21/2011 1,263.50 8.119% 12.094% 0.99% 15.95% 1/24/2011 1,272.25 8.342% 12.103% 0.98% 15.92% 1/25/2011 1,271.25 8.369% 12.111% 0.99% 15.97% 1/26/2011 1,277.25 8.449% 12.126% 0.98% 15.92% 1/27/2011 1,279.50 8.449% 12.123% 0.91% 14.69% 1/28/2011 1,255.25 11.246% 12.776% 0.90% 14.60% 1/31/2011 1,266.25 11.586% 12.862% 0.90% 14.58% 2/1/2011 1,286.50 12.398% 12.749% 0.91% 14.72% 2/2/2011 1,283.75 12.458% 12.763% 0.90% 14.59% 2/3/2011 1,287.00 12.383% 12.752% 0.90% 14.59% 2/4/2011 1,291.00 12.362% 12.622% 0.90% 14.52% 2/7/2011 1,299.50 12.411% 12.666% 0.90% 14.51% 2/8/2011 1,305.50 12.371% 12.654% 0.93% 15.03% 2/9/2011 1,303.00 12.440% 12.293% 0.90% 14.60% 2/10/2011 1,302.50 12.037% 12.297% 0.92% 14.94% 2/11/2011 1,311.00 12.110% 11.604% 0.91% 14.74% 2/14/2011 1,311.50 11.984% 11.610% 0.89% 14.34% 2/15/2011 1,310.00 11.978% 11.158% 0.88% 14.26% 2/16/2011 1,316.75 10.794% 11.176% 0.90% 14.54% 2/17/2011 1,321.50 10.700% 11.172% 0.82% 13.31% 2/18/2011 1,326.25 10.708% 10.442% 0.82% 13.26% 2/22/2011 1,298.25 13.529% 11.149% 0.81% 13.12% 2/23/2011 1,289.25 13.823% 10.960% 0.83% 13.51% 2/24/2011 1,286.50 13.773% 10.988% 0.85% 13.76% 2/25/2011 1,302.50 14.445% 11.091% 0.85% 13.76% 2/28/2011 1,309.75 12.368% 10.311% 0.85% 13.73% 3/1/2011 1,284.75 14.277% 10.784% 0.84% 13.61% 3/2/2011 1,289.50 13.114% 10.797% 0.84% 13.62% 3/3/2011 1,313.50 14.673% 11.380% 0.84% 13.61% 3/4/2011 1,304.00 14.972% 11.526% 0.84% 13.65% 3/7/2011 1,292.75 15.310% 11.692% 0.84% 13.62% 3/8/2011 1,303.75 15.438% 11.783% 0.82% 13.32% 3/9/2011 1,299.25 15.396% 11.767% 0.83% 13.35% 3/10/2011 1,278.25 16.444% 12.306% 0.82% 13.32% 3/11/2011 1,290.00 16.846% 12.430% 0.81% 13.15% 3/14/2011 1,279.25 16.858% 12.541% 0.77% 12.52% 3/15/2011 1,264.00 17.285% 12.784% 0.77% 12.52% 3/16/2011 1,242.75 18.114% 13.291% 0.77% 12.51% 3/17/2011 1,257.50 18.664% 13.504% 0.77% 12.52% 3/18/2011 1,263.00 18.699% 13.441% 0.77% 12.47% 3/21/2011 1,281.75 19.601% 13.766% 0.77% 12.45% 3/22/2011 1,277.00 18.177% 13.791% 0.76% 12.33% 3/23/2011 1,280.75 18.066% 13.799% 0.73% 11.85% 3/24/2011 1,294.00 18.449% 13.948% 0.73% 11.86% 3/25/2011 1,298.75 17.923% 13.961% 0.74% 11.99% 3/28/2011 1,291.00 17.907% 14.028% 0.74% 11.99% 3/29/2011 1,305.25 16.926% 14.185% 0.74% 12.01% 3/30/2011 1,312.75 16.989% 14.095% 0.74% 12.03% 3/31/2011 1,309.75 15.622% 14.109% 0.74% 11.96% 4/1/2011 1,316.50 15.484% 14.108% 0.74% 11.97% 4/4/2011 1,318.00 15.087% 14.102% 0.74% 11.98% 4/5/2011 1,315.50 14.842% 14.099% 0.75% 12.12% 4/6/2011 1,317.75 14.770% 14.091% 0.73% 11.77% 4/7/2011 1,317.25 13.311% 14.078% 0.72% 11.70% 4/8/2011 1,312.50 13.101% 13.961% 0.72% 11.71% 4/11/2011 1,308.25 12.730% 13.975% 0.75% 12.08% 4/12/2011 1,297.00 12.310% 14.048% 0.75% 12.09% 4/13/2011 1,297.50 10.212% 14.025% 0.75% 12.09% 4/14/2011 1,299.00 9.523% 13.751%

0.75% 12.10% 4/15/2011 1,307.50 9.640% 13.799% 0.75% 12.11% 4/18/2011 1,289.75 9.803% 14.107% 0.75% 12.13% 4/19/2011 1,297.25 9.868% 14.086% 0.75% 12.12% 4/20/2011 1,317.00 11.153% 14.422% 0.79% 12.78% 4/21/2011 1,319.75 10.630% 14.399% 0.79% 12.86% 4/25/2011 1,319.50 10.588% 14.398% 0.79% 12.75% 4/26/2011 1,329.75 10.542% 13.863% 0.79% 12.76% 4/27/2011 1,339.75 10.174% 13.834% 0.79% 12.75% 4/28/2011 1,343.75 10.057% 13.470% 0.78% 12.62% 4/29/2011 1,348.50 10.000% 13.468% 0.78% 12.67% 5/2/2011 1,346.50 9.952% 13.472% 0.78% 12.65% 5/3/2011 1,340.75 10.143% 13.503% 0.76% 12.29% 5/4/2011 1,331.75 10.469% 13.530% 0.76% 12.30% 5/5/2011 1,323.75 10.729% 13.567% 0.72% 11.60% 5/6/2011 1,323.25 10.729% 13.560% 0.72% 11.61% 5/9/2011 1,331.50 10.833% 13.615% 0.69% 11.16% 5/10/2011 1,342.50 11.048% 13.655% 0.69% 11.18% 5/11/2011 1,327.50 11.400% 13.869% 0.69% 11.17% 5/12/2011 1,336.25 11.560% 13.928% 0.65% 10.44% 5/13/2011 1,322.75 12.300% 14.060% 0.69% 11.15% 5/16/2011 1,314.25 12.380% 14.105% 0.68% 10.96% 5/17/2011 1,314.25 11.203% 14.084% 0.68% 10.99% 5/18/2011 1,327.25 11.539% 13.510% 0.69% 11.09% 5/19/2011 1,330.50 10.247% 13.426% 0.64% 10.31% 5/20/2011 1,316.50 10.973% 13.613% 0.67% 10.78% 5/23/2011 1,304.00 11.488% 13.525% 0.67% 10.80% 5/24/2011 1,302.25 11.041% 13.477% 0.70% 11.38% 5/25/2011 1,305.25 10.639% 12.863% 0.71% 11.53% 5/26/2011 1,315.25 11.025% 12.936% 0.72% 11.69% 5/27/2011 1,318.75 10.979% 12.353% 0.73% 11.78% 5/31/2011 1,332.75 11.765% 12.446% 0.73% 11.77% 6/1/2011 1,300.75 14.494% 13.325% 0.76% 12.31% 6/2/2011 1,301.25 14.367% 13.206% 0.77% 12.43% 6/3/2011 1,285.00 14.854% 13.443% 0.77% 12.54% 6/6/2011 1,273.75 15.079% 13.137% 0.79% 12.78% 6/7/2011 1,273.50 14.779% 12.990% 0.82% 13.29% 6/8/2011 1,265.75 14.285% 12.936% 0.83% 13.50% 6/9/2011 1,276.25 14.467% 12.808% 0.83% 13.44% 6/10/2011 1,258.00 14.744% 12.670% 0.85% 13.77% 6/13/2011 1,260.50 14.587% 12.433% 0.85% 13.79% 6/14/2011 1,278.75 15.704% 12.763% 0.85% 13.80% 6/15/2011 1,254.25 16.962% 13.011% 0.86% 13.95% 6/16/2011 1,257.75 16.446% 13.007% 0.86% 13.96% 6/17/2011 1,260.25 16.428% 12.998% 0.87% 14.03% 6/20/2011 1,268.00 16.435% 12.875% 0.88% 14.19% 6/21/2011 1,282.25 16.810% 13.075% 0.87% 14.09% 6/22/2011 1,274.00 16.934% 13.084% 0.87% 14.11% 6/23/2011 1,271.25 16.889% 12.870% 0.87% 14.11% 6/24/2011 1,258.25 16.826% 12.963% 0.87% 14.10% 6/27/2011 1,270.50 17.294% 13.139% 0.87% 14.10% 6/28/2011 1,288.75 17.713% 13.452% 0.87% 14.09% 6/29/2011 1,298.50 15.792% 13.549% 0.87% 14.08% 6/30/2011 1,309.75 16.104% 13.670% 0.86% 13.96% 7/1/2011 1,329.00 16.116% 14.009% 0.86% 13.98% 7/5/2011 1,331.00 15.616% 14.011% 0.87% 14.05% 7/6/2011 1,330.00 15.629% 13.990% 0.87% 14.02% 7/7/2011 1,346.00 15.677% 14.183% 0.85% 13.75% 7/8/2011 1,336.00 15.992% 14.151% 0.85% 13.80% 7/11/2011 1,312.75 16.469% 14.639% 0.87% 14.11% 7/12/2011 1,305.00 16.728% 14.694% 0.87% 14.09% 7/13/2011 1,306.50 16.014% 14.632% 0.89% 14.42% 7/14/2011 1,301.00 14.216% 14.374% 0.89% 14.40% 7/15/2011 1,309.25 14.306% 14.384% 0.89% 14.40% 7/18/2011 1,294.75 15.074% 14.212% 0.86% 13.86% 7/19/2011 1,315.50 15.905% 14.607%

0.85% 13.83% 7/20/2011 1,315.50 15.509% 14.607% 0.83% 13.47% 7/21/2011 1,336.75 16.094% 14.907% 0.83% 13.47% 7/22/2011 1,335.25 16.057% 14.826% 0.83% 13.47% 7/25/2011 1,327.75 15.635% 14.857% 0.83% 13.50% 7/26/2011 1,320.50 15.664% 14.877% 0.84% 13.53% 7/27/2011 1,293.25 16.919% 15.471% 0.84% 13.57% 7/28/2011 1,291.00 16.696% 15.453% 0.84% 13.56% 7/29/2011 1,282.75 16.477% 15.448% 0.84% 13.62% 8/1/2011 1,274.00 15.461% 15.461% 0.84% 13.65% 8/2/2011 1,241.50 17.551% 16.314% 0.86% 13.87% 8/3/2011 1,248.75 17.849% 16.307% 0.86% 13.93% 8/4/2011 1,193.00 22.428% 18.561% 0.87% 14.06% 8/5/2011 1,192.00 22.494% 18.458% 0.87% 14.11% 8/8/2011 1,105.50 32.929% 23.576% 0.87% 14.08% 8/9/2011 1,166.00 40.085% 26.433% 0.83% 13.51% 8/10/2011 1,117.75 42.046% 27.675% 0.83% 13.43% 8/11/2011 1,162.75 45.460% 29.083% 0.84% 13.61% 8/12/2011 1,171.00 45.487% 29.038% 0.84% 13.52% 8/15/2011 1,192.75 46.218% 29.340% 0.83% 13.48% 8/16/2011 1,186.50 45.603% 29.290% 0.79% 12.86% 8/17/2011 1,184.25 45.581% 29.242% 0.80% 12.94% 8/18/2011 1,137.75 46.462% 30.291% 0.76% 12.35% 8/19/2011 1,118.25 46.514% 30.438% 0.77% 12.45% 8/22/2011 1,117.50 46.590% 30.366% 0.82% 13.32% 8/23/2011 1,152.75 48.763% 31.174% 0.82% 13.21% 8/24/2011 1,166.25 48.860% 31.195% 0.83% 13.44% 8/25/2011 1,151.75 48.924% 30.925% 0.81% 13.14% 8/26/2011 1,170.25 49.523% 31.148% 0.80% 12.99% 8/29/2011 1,202.25 50.794% 31.637% 0.80% 12.94% 8/30/2011 1,199.00 50.030% 31.596% 0.79% 12.81% 8/31/2011 1,212.00 50.161% 31.690% 0.78% 12.67% 9/1/2011 1,195.50 47.634% 31.786% 0.77% 12.43% 9/2/2011 1,163.50 48.649% 32.184% 0.79% 12.76% 9/5/2011 1,139.75 41.115% 32.319% 0.80% 13.01% 9/6/2011 1,158.75 36.401% 32.533% 0.80% 13.01% 9/7/2011 1,193.25 34.317% 33.014% 0.80% 13.00% 9/8/2011 1,180.00 31.660% 32.859% 0.80% 12.88% 9/9/2011 1,152.25 32.756% 33.189% 0.81% 13.07% 9/12/2011 1,157.25 32.003% 33.203% 0.81% 13.08% 9/13/2011 1,165.25 32.100% 33.211% 0.80% 12.87% 9/14/2011 1,182.25 32.568% 33.274% 0.80% 12.96% 9/15/2011 1,204.25 29.512% 33.508% 0.81% 13.14% 9/16/2011 1,211.75 28.508% 33.538% 0.83% 13.45% 9/19/2011 1,197.75 29.030% 33.556% 0.84% 13.55% 9/20/2011 1,196.00 27.043% 33.484% 0.84% 13.67% 9/21/2011 1,155.75 29.650% 34.018% 0.87% 14.01% 9/22/2011 1,123.50 31.021% 34.399% 0.87% 14.01% 9/23/2011 1,129.75 30.449% 34.362% 0.86% 13.99% 9/26/2011 1,158.50 30.207% 34.669% 0.88% 14.18% 9/27/2011 1,169.50 30.472% 34.746% 0.87% 14.15% 9/28/2011 1,148.75 30.686% 34.901% 0.90% 14.64% 9/29/2011 1,156.25 30.546% 34.820% 0.91% 14.69% 9/30/2011 1,126.00 30.478% 35.161% 0.90% 14.63% 10/3/2011 1,086.25 32.183% 35.690% 0.89% 14.37% 10/4/2011 1,113.50 32.997% 36.160% 0.89% 14.38% 10/5/2011 1,135.00 31.813% 36.437% 0.88% 14.21% 10/6/2011 1,157.50 32.595% 36.720% 0.90% 14.61% 10/7/2011 1,155.00 31.435% 36.680% 0.90% 14.61% ### 1,191.00 33.352% 37.265% 0.92% 14.91% ### 1,189.50 33.305% 37.086% 0.92% 14.83% ### 1,198.25 33.007% 37.130% 0.92% 14.86% ### 1,196.00 32.314% 36.945% 0.92% 14.88% 0.96% 15.47% 0.95% 15.45%

0.95% 15.45% 0.96% 15.46% 1.01% 16.31% 1.01% 16.31% 1.15% 18.56% 1.14% 18.46% 1.46% 23.58% 1.63% 26.43% 1.71% 27.68% 1.80% 29.08% 1.79% 29.04% 1.81% 29.34% 1.81% 29.29% 1.81% 29.24% 1.87% 30.29% 1.88% 30.44% 1.88% 30.37% 1.93% 31.17% 1.93% 31.19% 1.91% 30.93% 1.92% 31.15% 1.95% 31.64% 1.95% 31.60% 1.96% 31.69% 1.96% 31.79% 1.99% 32.18% 2.00% 32.32% 2.01% 32.53% 2.04% 33.01% 2.03% 32.86% 2.05% 33.19% 2.05% 33.20% 2.05% 33.21% 2.06% 33.27% 2.07% 33.51% 2.07% 33.54% 2.07% 33.56% 2.07% 33.48% 2.10% 34.02% 2.13% 34.40% 2.12% 34.36% 2.14% 34.67% 2.15% 34.75% 2.16% 34.90% 2.15% 34.82% 2.17% 35.16% 2.20% 35.69% 2.23% 36.16% 2.25% 36.44% 2.27% 36.72% 2.27% 36.68% 2.30% 37.26% 2.29% 37.09% 2.29% 37.13% 2.28% 36.94%

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20HVol

90HVol