circulation data: east asian library

Circulation Data: East Asian Library

Zack LaneReCAP Coordinator

July 2012

ReCAPColumbia University

Looks at East Asian Library circulation activity Is only one measure of collection usage Presents data both EA specific and system-

wide Circulation Desk uses several happening

locations: East Asian, East Asian Reserves, Butler, and HSL

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

No usable data for non-circulating collections

East Asian Circulation Data



East Asian Library Happening Location Data from East Asian Library 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

35,000

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

Comparison of Primary Types of Circulation Activity at East Asian 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 declined almost

each year except FY08 23.3% decline from FY04 to FY12 Compare to 27.4% decline system-wide) Volume of discharge predictably mirrors

charges until FY08 when renewals began to increase

May be due to increased enrollment or new faculty

Gap between charges and discharges is unusual


28,399

26,09325,469

24,394

26,519

24,318

22,208 22,26021,769

0

5,000

10,000

15,000

20,000

25,000

30,000


Total CHARGE Activity by Fiscal Year at East Asian Library


East Asian Circulation by Patron Group All status patron/pseudopatron

charges are excluded Line charts include data from FY04-FY12 Only faculty charge volume increases,

except for grads in FY08 Pie chart breaks 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 East Asian Library

GRD OFF REG VIS


0

500

1,000

1,500

2,000

2,500

Monthly CHARGE Activity by Patron Group at East Asian Library

GRD OFF REG VIS


GRD36.7%

OFF37.6%

REG22.5%

VIS3.2%

FY12 CHARGE Activity by Patron Group at East Asian Library


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%


Proportional CHARGE Activity by Patron Group at East Asian Library

GRD OFF REG VIS


Observations Patron Group definitions have changed:

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

Almost 75% of all charges are to graduate students and faculty in FY12

Undergraduate charges have been declining relative to other groups

Increase in FY08 may have resulted from expanded graduate programs

Decline in faculty charges in FY10 may be attributed to single or few patrons


Circ Activity by Collection Data for major collections in the East Asian

Happening Location in FY12 only 65.8% are for stacks collections Charges to non-EA offsite collections are

placed in the Butler Happening Location Data unavailable for non-circulating

collections


Vernacular Stacks38.7%

Western Language Stacks29.5%

East Asian Reserves17.0%

Offsite13.3%

Other Offsite1.0%

Everything Else0.5%

FY12 Circulation Activity by CLIO Location at East Asian Library


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%


Proportional Circulation Activity by CLIO Location at East Asian Library

Vernacular Stacks Western Language Stacks Offsite East Asian Reserves Everything Else Other Offsite


Collection Usage by Patron Group Detailed Patron Group info for

◦ Western Language Stacks (eal)◦ Vernacular Stacks (eax)◦ EA Offsite (off,eal and off,eax)◦ Reserves (eal,res and eax,res)

Undergraduates charge most items in Western Language Stacks and Reserves

Graduates and Faculty are heaviest users of Vernacular Stacks and Offsite collections

Grad students are on campus year round, dissertations due at end of summer


0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000


CHARGE Activity to Western Language Stacks (eal)by Fiscal Year and Patron Group

GRD OFF REG VIS


0

2,000

4,000

6,000

8,000

10,000

12,000


CHARGE Activity to Vernacular Stacks (eax)by Fiscal Year and Patron Group

GRD OFF REG VIS


0

1,000

2,000

3,000

4,000

5,000

6,000


CHARGE Activity to East Asian Offsite (off,eal and off,eax) 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


CHARGE Activity to East Asian Reserves (eal,res and eax,res) 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

Offsite vs. On Campus 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

Offsite CHARGES Offsite RENEWALS


0

100,000

200,000

300,000

400,000

500,000

600,000


Circulation of ON CAMPUS Collections: Charges vs Renewals

On Campus CHARGES On Campus 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/index.html

circulation data: east asian library

Documents

faculty charges

east asian reserves

requests circulation

patron group charges

usable data

recap data

hslea library data

fy12undergraduate charges