Year WPI P1961M06 8.36 0.0839941961M07 8.53 1.0904791961M08 8.45 -1.6235261961M09 8.25 -1.7511971961M10 8.24 0.2196321961M11 8.23 0.4919271961M12 8.14 0.3299421962M01 8.17 1.1454641962M02 8.23 0.6076091962M03 8.18 -0.4041481962M04 8.33 1.0735481962M05 8.45 0.4610291962M06 8.5 0.0725791962M07 8.63 0.5690491962M08 8.74 0.5608521962M09 8.69 0.0869271962M10 8.7 0.4253631962M11 8.69 0.5031711962M12 8.42 -1.8204711963M01 8.42 0.7711781963M02 8.46 0.4572421963M03 8.6 1.8825131963M04 8.75 0.9898671963M05 8.88 0.5473081963M06 8.95 0.2587121963M07 9.05 0.1106321963M08 9.08 -0.4138261963M09 9.12 1.1523311963M10 9.12 0.2568331963M11 9.09 0.3095761963M12 9.1 1.2971981964M01 9.14 1.20421964M02 9.25 1.3184681964M03 9.33 1.1175991964M04 9.38 -0.0601711964M05 9.54 0.7731811964M06 9.74 1.431331964M07 9.94 0.9551171964M08 10.15 1.3429521964M09 10.33 2.5405241964M10 10.35 0.3548561964M11 10.23 -0.4035961964M12 10.35 2.2271341965M01 10.46 1.7087191965M02 10.24 -1.8045591965M03 10.1 -1.1492631965M04 10.2 0.546328

1965M05 10.33 0.3939841965M06 10.42 0.0700271965M07 10.69 1.3820071965M08 10.93 1.43131965M09 10.89 0.4900671965M10 10.87 -0.095291965M11 11.08 2.8800081965M12 11.09 1.1119111966M01 11.13 0.8382431966M02 11.1 0.2178641966M03 11.26 1.5572711966M04 11.49 1.7403591966M05 11.77 1.6206831966M06 11.99 0.8071966M07 12.19 0.3811831966M08 12.36 0.6102171966M09 12.15 -0.8100861966M10 12.27 1.0916671966M11 12.37 2.0642561966M12 12.52 2.2329431967M01 12.78 2.2156611967M02 13.06 2.8598211967M03 13.13 0.4527421967M04 13.21 0.4286141967M05 13.46 1.1429211967M06 13.85 1.6329231967M07 14.23 1.4382431967M08 14.1 -1.6695071967M09 14.2 1.5762291967M10 14.27 0.739961967M11 14.01 -0.3393551967M12 13.72 -1.0438721968M01 13.64 -0.7511911968M02 13.4 -0.9661381968M03 13.15 -2.1811981968M04 13.42 1.939591968M05 13.48 -0.2122551968M06 13.41 -1.9626011968M07 13.45 -0.8556251968M08 14 3.3999751968M09 14.29 2.6950441968M10 14.11 -0.771821968M11 13.65 -1.5801631968M12 13.36 -1.1500261969M01 13.4 -0.2189441969M02 13.31 0.2452131969M03 13.57 1.4626261969M04 13.59 0.0802

1969M05 13.72 0.3695121969M06 14.15 1.5778091969M07 14.35 0.3876161969M08 14.36 -0.497451969M09 14.34 0.3404911969M10 14.11 -0.9086471969M11 13.89 0.2818851969M12 14 1.7020941970M01 14.32 1.5406231970M02 14.29 0.7019041970M03 14.48 0.8477341970M04 14.5 0.0625091970M05 14.72 0.9111791970M06 14.9 -0.2940131970M07 14.92 -0.8203231970M08 15 0.0511071970M09 15.09 1.0075791970M10 15.04 0.5667531970M11 14.9 0.8816671970M12 14.9 0.8397181971M01 15.09 0.3969871971M02 14.94 -0.0461151971M03 14.95 -0.3791811971M04 15.12 1.0184461971M05 15.21 -0.1008681971M06 15.56 0.9268531971M07 15.76 0.3015221971M08 15.93 0.6036421971M09 15.98 0.7674171971M10 15.85 0.174321971M11 15.62 0.2245471971M12 15.44 -0.3382351972M01 15.9 2.0843691972M02 15.9 0.8854091972M03 16.07 0.777311972M04 16.16 0.3748541972M05 16.31 0.0416641972M06 16.66 0.9396841972M07 17.03 1.1506031972M08 17.45 2.0633531972M09 17.41 0.2109681972M10 17.58 1.9738161972M11 17.54 1.3254831972M12 17.6 1.2576421973M01 17.61 -0.6818051973M02 17.93 2.600941973M03 18.12 0.8960641973M04 18.4 1.203261

1973M05 19.07 2.5497831973M06 19.52 1.4126041973M07 20.14 1.8784111973M08 20.36 0.7766551973M09 20.29 0.0896461973M10 20.69 2.915061973M11 21.33 4.5079871973M12 21.26 0.7020811974M01 22.19 3.8215761974M02 22.56 2.2524411974M03 23.41 3.6617611974M04 24.05 2.263321974M05 24.73 1.5480251974M06 25.4 1.9482771974M07 26.25 1.9220991974M08 26.71 1.5694851974M09 27.05 1.5821451974M10 26.79 0.0591471974M11 26.4 -0.120721974M12 26.24 0.4373621975M01 26.29 -0.0080271975M02 26.16 0.0384731975M03 25.95 -0.8912931975M04 26.07 -0.0132411975M05 26.49 0.2760491975M06 26.43 -0.8455441975M07 26.16 -2.4522111975M08 26.4 0.8589331975M09 26.38 0.1124931975M10 26.34 0.9201521975M11 25.79 -0.8534111975M12 25.14 -1.5965041976M01 24.73 -1.5802691976M02 24.5 -0.4168621976M03 24.17 -1.4733611976M04 24.7 1.5923381976M05 25.16 0.5807611976M06 25.49 0.7009491976M07 26.4 2.134631976M08 26.53 0.4360821976M09 26.68 0.6947371976M10 26.41 0.0686051976M11 26.28 0.7070751976M12 26.35 1.0263521977M01 26.58 1.178221977M02 27.16 2.7058041977M03 27.19 -0.0806631977M04 27.36 -0.038002

1977M05 27.86 0.8520281977M06 27.99 -0.235711977M07 28.05 -1.2424511977M08 28 -0.2842641977M09 27.97 0.0923571977M10 27.54 -0.4649831977M11 27.41 0.7473581977M12 27.59 1.1886821978M01 27.42 -0.106641978M02 26.96 -1.2500931978M03 27.19 0.7097811978M04 27.13 -0.9613691978M05 27.22 -0.3406851978M06 27.45 0.0683181978M07 27.77 -0.3755211978M08 27.78 -0.1949861978M09 27.74 0.2293871978M10 27.87 1.5438451978M11 27.87 1.2336011978M12 27.56 -0.7788631979M01 27.59 0.6556991979M02 27.45 -0.0937581979M03 28.11 2.2758931979M04 29.06 2.5496311979M05 29.51 1.1878471979M06 30.09 1.0427691979M07 31.47 2.8567491979M08 32.48 2.829511979M09 32.88 1.7897351979M10 33.03 1.4894441979M11 33 1.1248241979M12 33.74 2.5329561980M01 33.85 0.8024781980M02 34.38 1.8494181980M03 34.66 0.8696081980M04 34.93 -0.076341980M05 35.67 1.9346041980M06 36.74 1.9992131980M07 38.32 2.6467581980M08 38.69 0.4959951980M09 39.21 2.0782271980M10 39.33 1.252971980M11 38.44 -1.1576171980M12 38.22 -0.2029671981M01 39.12 2.6955261981M02 39.95 2.2803471981M03 40.13 0.6776151981M04 40.98 1.249199

1981M05 41.31 0.7169841981M06 41.59 -0.37531981M07 42.54 0.7976421981M08 42.99 0.5947561981M09 42.33 -0.7076341981M10 42.23 0.6164671981M11 41.84 0.0483991981M12 41.55 -0.1605651982M01 41.78 0.7732831982M02 41.43 -0.7855331982M03 41.19 -0.2217491982M04 41.48 -0.1001341982M05 41.64 0.2046411982M06 42.42 0.8175851982M07 42.95 0.0184431982M08 43.44 0.7023461982M09 43.24 0.4522191982M10 43.11 0.4070131982M11 43.36 1.361371982M12 43.24 0.3687471983M01 43.36 0.3395781983M02 43.77 1.0442971983M03 43.89 0.6087921983M04 44.47 0.6514011983M05 45.25 1.4269471983M06 45.53 -0.4231511983M07 45.98 0.0109131983M08 46.35 0.4781081983M09 46.52 1.2898791983M10 46.56 0.5860621983M11 46.68 0.8467861983M12 46.6 0.6128861984M01 46.97 0.7310951984M02 47.01 0.299961984M03 47.05 0.3289431984M04 47.38 0.1259981984M05 47.83 0.5061391984M06 48.85 1.1952751984M07 49.55 0.6258471984M08 49.92 0.5059571984M09 49.55 0.1172441984M10 49.75 0.7406651984M11 49.67 0.3145571984M12 49.34 0.1524371985M01 49.59 0.3834151985M02 49.47 0.0944911985M03 49.67 0.5568481985M04 50.53 1.237654

1985M05 50.9 0.2487281985M06 51.27 -0.0904791985M07 51.64 -0.0546611985M08 51.68 -0.0238891985M09 51.23 -0.15781985M10 51.35 0.4497991985M11 51.27 0.2997911985M12 51.35 0.9980861986M01 51.56 0.2455981986M02 51.89 1.0558661986M03 52.21 0.7257721986M04 52.7 0.4820511986M05 53.24 0.5117491986M06 53.73 0.3044741986M07 54.47 0.5239751986M08 54.71 0.402551986M09 54.67 0.4957691986M10 54.96 0.6677631986M11 54.92 0.418211986M12 54.55 0.1701411987M01 55 0.6171091987M02 54.75 0.0122551987M03 55 0.5589241987M04 55.53 0.5129991987M05 56.39 1.0970841987M06 57.01 0.6004831987M07 57.66 0.2245041987M08 59.14 2.5323751987M09 59.14 0.4140241987M10 59.34 0.4292781987M11 59.88 1.4129941987M12 59.84 0.7945751988M01 60.53 0.9042761988M02 60.61 0.6274281988M03 60.86 0.5345051988M04 61.48 0.607681988M05 61.76 0.0883221988M06 62.38 0.5871481988M07 63.28 0.5087271988M08 63.32 0.004011988M09 63.24 0.0924981988M10 63.93 1.2378961988M11 63.81 0.3189981988M12 63.48 0.3229281989M01 63.85 0.3354121989M02 63.89 0.5520081989M03 64.18 0.6069011989M04 64.92 0.808754

1989M05 65.7 0.9415991989M06 66.23 0.3598131989M07 67.05 0.3405581989M08 68.32 1.7565821989M09 68.98 1.0291111989M10 68.98 0.1605871989M11 68.65 0.0547561989M12 68.28 0.2621411990M01 68.85 0.6223231990M02 69.18 0.9322661990M03 69.71 0.9532631990M04 70.82 1.3324861990M05 71.43 0.6394931990M06 72.5 1.0295061990M07 73.48 0.5384341990M08 73.85 0.2555271990M09 74.14 0.3518931990M10 75.12 1.4960281990M11 75.86 1.577461990M12 76.48 1.541051991M01 77.7 1.4872331991M02 78.52 1.4095691991M03 78.57 0.2614371991M04 79.02 0.3471171991M05 79.84 0.8656741991M06 81.31 1.3110291991M07 83.11 1.5052381991M08 85.74 2.8146891991M09 86.23 0.5171241991M10 86.15 0.0481081991M11 87.05 1.6957121991M12 87.38 1.0095261992M01 88.24 0.963391992M02 88.69 0.8034731992M03 89.22 0.8030461992M04 89.92 0.527551992M05 90.82 0.8282961992M06 91.84 0.6186731992M07 92.87 0.5282251992M08 93.77 0.6376071992M09 94.55 0.7999421992M10 95.25 0.8832441992M11 94.96 0.3481811992M12 94.84 0.4318021993M01 94.92 0.1448731993M02 95.41 0.7542181993M03 95.53 0.3243331993M04 96.15 0.25837

1993M05 97.13 0.8651981993M06 98.28 0.7282241993M07 99.63 0.8256671993M08 101.23 1.3461431993M09 102.83 1.6205861993M10 103.36 0.6112861993M11 103.11 0.3996531993M12 103.16 0.5121341994M01 103.57 0.5321431994M02 104.43 1.0065281994M03 105.57 1.3064851994M04 107.5 1.2273211994M05 108.3 0.6037311994M06 110 1.2174921994M07 111.1 0.4974311994M08 111.8 0.4632791994M09 111.9 0.1853131994M10 112.7 0.7846321994M11 113.2 1.0685991994M12 114.5 1.5213021995M01 116.2 1.6976891995M02 116.9 0.732051995M03 116.9 0.2169731995M04 119.3 1.2293061995M05 120.2 0.6649341995M06 120.7 0.1376561995M07 121.8 0.4536321995M08 121.8 -0.0216721995M09 121.9 0.2311091995M10 122.2 0.2548561995M11 122.5 0.8144971995M12 122.1 -0.0375171996M01 122 0.2300611996M02 122.1 0.1686871996M03 122.2 0.2936171996M04 123.7 0.2972611996M05 124.5 0.5934411996M06 125.1 0.2610991996M07 127 1.1312041996M08 127.8 0.6973481996M09 128.1 0.3656831996M10 127.8 -0.297751996M11 128 0.6309761996M12 128.5 0.6767081997M01 128.3 0.2702711997M02 128.8 0.4219221997M03 128.8 0.1331281997M04 130.9 0.702105

1997M05 130.8 -0.1000021997M06 131.4 0.2683571997M07 131.6 -0.1342221997M08 132 0.4353431997M09 132.9 0.7826471997M10 133.4 0.178761997M11 133.1 0.166811997M12 133.7 0.7675411998M01 134.8 1.3545391998M02 134.2 -0.4708891998M03 134.4 0.1941071998M04 136.9 1.0235781998M05 138.2 0.9371281998M06 139.8 0.9735771998M07 140.9 0.6299471998M08 140.6 -0.1084851998M09 140.8 0.1917891998M10 142 0.5200721998M11 142.6 0.7609621998M12 142.1 0.035321999M01 140.9 -0.2390971999M02 141.4 0.3152871999M03 141.6 0.0384641999M04 142.4 -0.0968531999M05 142.8 0.2987391999M06 143.3 0.1241971999M07 143.7 0.2307311999M08 144.6 0.6810631999M09 145.3 0.5348741999M10 146.9 0.6930031999M11 147 0.3378061999M12 146.1 -0.1518222000M01 145.9 0.4676152000M02 146.4 0.3084472000M03 149.5 1.8654942000M04 151.7 0.9605692000M05 151.8 0.0909262000M06 152.7 0.353412000M07 153.1 0.2911292000M08 153.4 0.1769932000M09 154.7 0.8568812000M10 157.9 1.6754342000M11 158.2 0.3959362000M12 158.5 0.7481172001M01 158.6 0.5895672001M02 158.6 0.0030632001M03 159.1 -0.0181262001M04 159.9 0.144776

2001M05 160.3 0.2665552001M06 160.8 0.0595452001M07 161.1 0.2325092001M08 161.7 0.2749282001M09 161.7 -0.0304172001M10 162.5 0.2640712001M11 162.3 0.0043462001M12 161.8 0.3273942002M01 161 -0.0697832002M02 160.8 -0.0735272002M03 161.9 0.3427942002M04 162.3 -0.0761832002M05 162.8 0.3176992002M06 164.7 0.9100342002M07 165.6 0.5741392002M08 167.1 0.7453282002M09 167.4 0.0439372002M10 167.5 0.0145692002M11 167.8 0.271622002M12 167.2 0.3245542003M01 167.8 0.7188942003M02 169.4 1.0608892003M03 171.6 1.0101772003M04 173.1 0.5252572003M05 173.4 0.1311782003M06 173.5 -0.2318332003M07 173.4 -0.0670432003M08 173.7 -0.002062003M09 175.6 0.8559112003M10 176.1 0.4152822003M11 176.9 0.5236362003M12 176.8 0.692272004M01 178.7 1.414112004M02 179.8 0.7609322004M03 179.8 -0.1961482004M04 180.9 0.175542004M05 182.1 0.5332692004M06 185.2 1.4064262004M07 186.6 0.6652242004M08 188.4 0.8133112004M09 189.4 0.1859172004M10 188.9 -0.0127662004M11 190.2 0.8095972004M12 188.8 0.0616222005M01 188.6 0.2637672005M02 188.8 0.3030842005M03 189.4 0.1766062005M04 191.6 0.619815

2005M05 192.1 0.0202442005M06 193.2 0.2852032005M07 194.6 0.5217222005M08 195.3 0.2447482005M09 197.2 0.5843382005M10 197.8 0.6439082005M11 198.2 0.4324962005M12 197.2 0.3128222006M01 196.3 -0.0327162006M02 196.4 0.3019632006M03 196.8 0.0793012006M04 199 0.4214042006M05 201.3 0.8235482006M06 203.1 0.643722006M07 204 0.0758842006M08 205.3 0.5753612006M09 207.8 0.8674872006M10 208.7 0.7956942006M11 209.1 0.5521862006M12 208.4 0.4480022007M01 208.8 0.7209292007M02 208.9 0.3337452007M03 209.8 0.2810792007M04 211.5 -0.0202762007M05 212.3 -0.0061242007M06 212.3 -0.2431362007M07 213.6 0.1091242007M08 213.8 0.0786292007M09 215.1 0.3670062007M10 215.2 0.4240392007M11 215.9 0.7957892007M12 216.7 1.0956832008M01 218.1 1.2671212008M02 220 1.1526072008M03 225.5 2.275952008M04 228.5 0.3657352008M05 231.1 0.7386022008M06 237.4 2.476652008M07 240 0.4649272008M08 241.2 0.5420882008M09 241.5 -0.010682008M10 239 -0.657752008M11 234.2 -1.4998462008M12 229.7 -1.2796372009M01 228.9 0.3466282009M02 227.6 -0.2942652009M03 228.2 0.0365882009M04 231.5 0.39937

2009M05 234.3 0.820122009M06 235 0.0903972009M07 238.7 0.8624792009M08 240.8 0.9534962009M09 242.6 0.6983192009M10 242.5 0.3602292009M11 247.2 2.4631452009M12 248.3 1.0463522010M01 248.5 0.8243012010M02 250.1 0.9001862010M03 252.13 0.5734442010M04 256.39 0.5758892010M05 257.31 0.011582010M06 258.61 0.3070512010M07 260.83 0.0977692010M08 261.01 0.1648032010M09 262.68 0.6457572010M10 264.34 1.0316312010M11 266.01 1.1751852010M12 270.08 2.0880142011M01 273.78 2.1424322011M02 273.96 0.3033342011M03 276.55 0.7121922011M04 281.36 0.588601