circulation data: social work library

Circulation Data: Social Work Library

Zack LaneReCAP Coordinator

July 2012

ReCAPColumbia University

Looks at Social Work Library circulation activity

Is only one measure of collection usage Presents data both SW specific and system-

wide ?Circ Desk uses several happening

locations: Social Work, Butler, BorrowDirect, HSL

No circulation data for non-circulating collections

Social Work Circulation Data



?SW Library Background ?Social Work Library became independent

entity in August 2004 ?Opening of new Social Work building ?Print collection was previously part of

Lehman Library in SIPA ?Transition period between August 2004

and May 2005 ?Two happening locations:

◦ Social Work Circ. Deck◦ SW Circulation Desk


SW Library Happening Location

Data collated by happening location Social Work Library became independent

entity in August 2004 Five primary types of circulation activity:

charge, discharge, renewal, recall and hold

Most renewals and recalls are done in the OPAC happening location, dynamically by patrons themselves

Note: circulation data includes primarily “on campus” collections


15,535

13,04612,564

10,545

11,505

13,110

10,871

9,753

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10 FY10/11 FY11/12

Total CHARGE Activity by Fiscal Year at Social Work Library


0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000


Primary Types of Circulation Activity at Social Work Library

Sum of ALL CHARGES Sum of DISCHARGES Sum of ALL RENEWALS Sum of ALL RECALLS Sum of ALL HOLDS


Observations Total volume of charges has fluctuated System-wide there has been a 27.4%

decline Volume of discharge predictably mirrors

charges Other types of circulation activity happen in

much lower volume Majority of renewals occur in the OPAC

happening location


SW Circulation by Patron Group

Almost 3/4 of all charges are to graduate students

Patron Group definitions have changed:◦ Adjunct faculty, in 2008 grad students were given

primary group OFF instead of GRD Pie charts break down data for FY12 only Bar chart compares patron group charges

for each fiscal year


0

2,000

4,000

6,000

8,000

10,000

12,000

14,000


CHARGE Activity by Patron Group at Social Work Library

GRD OFF REG VIS


0

500

1,000

1,500

2,000

2,5007/

1/20

049/

1/20

0411

/1/2

004

1/1/

2005

3/1/

2005

5/1/

2005

7/1/

2005

9/1/

2005

11/1

/200

51/

1/20

063/

1/20

065/

1/20

067/

1/20

069/

1/20

0611

/1/2

006

1/1/

2007

3/1/

2007

5/1/

2007

7/1/

2007

9/1/

2007

11/1

/200

71/

1/20

083/

1/20

085/

1/20

087/

1/20

089/

1/20

0811

/1/2

008

1/1/

2009

3/1/

2009

5/1/

2009

7/1/

2009

9/1/

2009

11/1

/200

91/

1/20

103/

1/20

105/

1/20

107/

1/20

109/

1/20

1011

/1/2

010

1/1/

2011

3/1/

2011

5/1/

2011

7/1/

2011

9/1/

2011

11/1

/201

11/

1/20

123/

1/20

125/

1/20

12

Monthly CHARGE Activity by Patron Group at Social Work Library

GRD OFF REG VIS


GRD76.80%

OFF13.29%

REG8.81%

VIS1.11%

FY12 Breakdown of CHARGE Activity by Patron Group at SW Library


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%


Proportion of CHARGE Activity by Patron Group

GRD OFF REG VIS


Circ Activity by Collection Over the life of SW, charge activity is split

evenly between stacks and reserves collections

In FY12, activity was heavier with Reserves Charges to SW Stacks has declined steadily

each fiscal year Offsite charges should be placed in the

Butler Happening Location Data unavailable for non-circulating

collections


SW Reserves53.03%

SW Stacks43.10%

Everything Else1.56%

Offsite1.46% SW Offsite

0.83%

SW Other0.03%

FY04-FY12 Circulation Activity by CLIO Location at Social Work Library


SW Reserves61.59%

SW Stacks27.56%

Everything Else6.60%

Offsite3.17%

SW Offsite1.07%

SW Other0.01%

FY12 Circulation Activity by CLIO Location at Social Work Library


0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000


CHARGE Activity by CLIO Location by Fiscal Year at Social Work Library

SW Reserves SW Stacks Everything Else Offsite SW Offsite SW Other


Collection Use by Patron Group

Data for all transactions in the SW Happening Location

Nearly 80% is for the LC Stacks collection alone

Offsite charges are placed in the Butler Happening Location

Data unavailable for non-circulating collections


0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

FY03/04 FY04/05 FY05/06 FY06/07 FY07/08 FY08/09 FY09/10 FY10/11 FY11/12

CHARGE Activity to Social Work Reserves (swx,res) by Fiscal Year and Patron Group

GRD OFF REG VIS


0

100

200

300

400

500

600

700

800

900


CHARGE Activity to Social Work Offsite (off,swx) by Fiscal Year and Patron Group

GRD OFF REG VIS


0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000


CHARGE Activity to Social Work Stacks (swx) by Fiscal Year and Patron Group

GRD OFF REG VIS

System-wide circulation statistics are available for both on campus and offsite collections

Circulation data are accessible to all staff Offsite collections can be identified by CLIO

location format off,xxx. System-wide data is available from July

2003, the date of Ex Libris Voyager implementation

System-wide Circulation Data


https://www1.columbia.edu/sec/cu/libraries/inside/clio/statistics/circulation/xls/circ_all_xls.html

Comparison of on campus and offsite collection charges by volume

On campus charge volume declined by 27.4% between FY04 and FY12

On campus charges have declined every year since FY04

Offsite charge volume increased 121.3% between FY04 and FY12

N.B. On campus collection size declines each year; offsite collections grow each year

On Campus vs. Offsite Charges



13,326 14,951 17,615 21,383 25,083 28,029 27,524 28,735 29,497

557,501 552,788

509,556

483,905

449,135 441,188 437,064415,987

404,690

0

100,000

200,000

300,000

400,000

500,000

600,000


CHARGES: Offsite vs. On Campus by Fiscal Year

Offsite On Campus

Monthly charges of both onsite and off-site collections are in phase with the academic calendar

Peaks in the middle of Fall and Spring terms The pattern of offsite charges is more

apparent when viewed alone

Monthly Onsite vs. Offsite Charges



0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

CHARGES: Offsite vs On Campus by Month

Offsite On Campus


0

500

1,000

1,500

2,000

2,500

3,000

3,500

CHARGES: Offsite by Month

On campu and offsite charges can be compared using a ratio

The ratio of offsite to on campus increased from FY04 to FY012

Offsite collections are accounting for proportionally more activity

On Campus vs. Offsite Charges



2.33%

2.63%

3.34%

4.23%

5.29%

5.97% 5.92%

6.46%

6.79%

0.00%

1.00%

2.00%

3.00%

4.00%

5.00%

6.00%

7.00%

8.00%


CHARGES: Offsite % of Total

Chart compares total volume of charges to renewals for Offsite collections

Graduate students and Faculty request more Offsite collections than Undergraduates

Graduate students and especially Faculty have higher renewal/charge ratios

Over time, these two patron groups tend to renew more than charge

CUL may expect to see steady or decreasing request volume as a result

Charges vs. Renewals



0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000


Circulation of OFFSITE Collections: Charges vs Renewals


0

100,000

200,000

300,000

400,000

500,000

600,000


Circulation of ON CAMPUS Collections: Charges vs Renewals

More information about data sets can be found on the ReCAP Data Center website

Primary data categories include: accession, retrieval, delivery and circulation

Tailored data sets and analysis will be provided to staff via the ReCAP Coordinator

Please see the main ReCAP website for general information about CUL procedures and systems

More Data Available


https://www1.columbia.edu/sec/cu/libraries/bts/recap/data.html

https://www1.columbia.edu/sec/cu/libraries/bts/recap/data.html

https://www1.columbia.edu/sec/cu/libraries/bts/recap/index.html

https://www1.columbia.edu/sec/cu/libraries/bts/recap/index.html

circulation data: social work library

Documents

hslno circulation data

requests circulation

systemwide data

happening locations

locationsocial work

sw stacks

sw library background

offsite collection charges