1. Circulation Data: East Asian Library
Zack Lane
ReCAP Coordinator
July 2012
ReCAP
Columbia University

2. East Asian Circulation Data
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
ReCAP
Columbia University

3. 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
ReCAP
Columbia University

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Columbia University

5. 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
ReCAP
Columbia University

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Columbia University

7. 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
ReCAP
Columbia University

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Columbia University

12. 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
ReCAP
Columbia University

13. 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
ReCAP
Columbia University

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Columbia University

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Columbia University

16. 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
ReCAP
Columbia University

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21. System-wide Circulation Data
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
ReCAP
Columbia University

22. On Campus vs. Offsite Charges
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
ReCAP
Columbia University

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Columbia University

24. Offsite vs. On Campus Charges
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
ReCAP
Columbia University

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27. Charges vs. Renewals
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
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Columbia University

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30. More Data Available
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
ReCAP
Columbia University