Circulation Data: Health Sciences Library

Circulation Data: Health Sciences Library

Zack LaneReCAP Coordinator

July 2012

ReCAPColumbia University

Looks at HSL circulation activity Is only one measure of collection usage Presents data both HSL specific and

system-wide Circulation Desk uses several happening

locations: Health Sciences Circ, Health Sciences Reserves, Butler, and BorrowDirect

HSL Library data is available from the implementation of Voyager, July 2003

No usable data for non-circulating collections

Health Sciences Circulation Data



HSL Happening Location Data from HSL Happening Location only

(includes Reserves) Five primary types of circulation activity:

charge, discharge, renewal, recall and hold Renewals and recalls are done in the OPAC

happening location, dynamically by patrons themselves

Circulation data for special collections pertains only to exceptions:◦ Interlibrary loan◦ Exhibits◦ Scanning


0

5,000

10,000

15,000

20,000

25,000

30,000

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

Primary Types of Circulation Activity at HSL

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


Observations Total volume of charges down overall since

FY04 27.9% decline from FY04 to FY11 Compare to 27.4% decline system-wide Charge volume fluctuated FY04-FY08 Since FY09 the total volume has

consistently risen by a small margin


22,127

24,841

20,049

21,257

16,874

14,581

15,697 15,707 15,940

0

5,000

10,000

15,000

20,000

25,000

30,000


Total CHARGE Activity by Fiscal Year at HSL


HSL Circulation by Patron Group All status patron/pseudopatron

charges are excluded Line charts includes data from FY04-FY12 Line charts include FY and monthly activity Pie chart 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

16,000

18,000


CHARGE Activity by Patron Group at HSL

GRD OFF REG VIS HSA


0

500

1,000

1,500

2,000

2,500

3,000

3,500

Monthly CHARGE Activity by Patron Group at HSL

GRD OFF REG VIS HSA


GRD64.20%

OFF25.04%

REG8.42%

HSA2.28%

VIS0.06%

FY12 CHARGE Activity by Patron Group at HSL


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%


Proportion of CHARGE Activity by Patron Group at HSL

GRD OFF REG VIS HSA


Observations Patron Group definitions have changed:

◦ Adjunct faculty : in 2008 grad students were given primary group OFF instead of GRD

Almost 90% of all charges are to graduate students and faculty in FY12

Graduate and undergraduate charges have been declining

Peak borrowing period is Fall semester Faculty activity is consistent throughout the

calendar year


Circ Activity by Collection Data for major collections in the HSL

Happening Location in FY12 only 44.5% are for reserves collections “HSL Other” includes

◦ hsl,mcrs◦ hsl,over◦ hsl,medi◦ And others

Data unavailable for non-circulating collections


HSL Reserves44.5%

HSL Stacks14.0%

HSL Other13.8%

Everything Else11.3%

2HSL Locations9.2%

Offsite7.2%

FY12 Circulation Activity by CLIO Location in HSL Happening Location


CLIO Location Activity with Patron Group Detail Detailed Patron Group info for

◦ HSL Offsite(off,hsl)◦ Reserves (hsl,res)◦ General stacks (hsl,stx)◦ To Morningside Campus (hsl2xxx)

Noticeable decline is stacks activity when renovation began


0

100

200

300

400

500

600

700

FY07/08 FY08/09 FY09/10 FY10/11 FY11/12

CHARGE Activity to Offsite HSL (off,hsl)by Fiscal Year and Patron Group

GRD OFF REG VIS HSA


0

2,000

4,000

6,000

8,000

10,000

12,000

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

CHARGE Activity to HSL Reserves(hsl,res)by Fiscal Year and Patron Group

GRD OFF REG VIS HSA


0

2,000

4,000

6,000

8,000

10,000

12,000

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

CHARGE Activity to Health Sciences Stacks(hsl,stx)by Fiscal Year and Patron Group

GRD OFF REG VIS HSA


0

50

100

150

200

250

300

350

400

450

500


CHARGE Activity to HSL/Morningside Lending (hsl2xxx)by Fiscal Year and Patron Group

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 on campus and offsite 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

On Campus 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

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


0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

1.60


CHARGE to RENEWAL Ratio

Offsite On Campus

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

Documents

Circulation Data: Health Sciences Library