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Circulation Data: East Asian Library

A detailed analysis of circulation activity and trends in the East Asian Library at Columbia University, highlighting patron groups, collection usage, and system-wide statistics.

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Circulation Data: East Asian Library

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  1. Circulation Data: East Asian Library Zack Lane ReCAP Coordinator August 5, 2011 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 • Most renewal, recall and hold 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

  4. ReCAP Columbia University

  5. Observations • Total volume of charges has declined almost each year except FY08 • 21.6% decline from FY04 to FY11 • Compare to 25.4% 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 ReCAP Columbia University

  6. ReCAP Columbia University

  7. East Asian Circulation by Patron Group • All status patron/pseudopatron charges are excluded • Line chart includes data from FY04-FY11 • Only faculty charge volume increases, except for grads in FY08 • Pie chart break down data for FY11 only • Bar chart compares patron group charges for each fiscal year ReCAP Columbia University

  8. ReCAP Columbia University

  9. ReCAP Columbia University

  10. ReCAP Columbia University

  11. 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 FY11 • 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

  12. Circ Activity by Collection • Data for major collections in the East Asian Happening Location in FY11 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

  13. ReCAP Columbia University

  14. Patron Group Details • Detailed Patron Group info for • Western Language Stacks (eal) • Vernacular Stacks (eax) • EA Offsite (off,eal and off,eax) • Undergraduates charge most items in Western Language Stacks • Graduates and Faculty are heaviest users of Vernacular Stacks and offsite collections ReCAP Columbia University

  15. ReCAP Columbia University

  16. ReCAP Columbia University

  17. ReCAP Columbia University

  18. 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

  19. On Campus vs. Offsite Charges • Comparison of on campus and offsite collection charges by volume • On campus charge volume declined by 25.4%between FY04 and FY11 • On campus charges have declined every year since FY04 • Offsite charge volume increased 115.6%between FY04 and FY11 • N.B. On campus collection size declines each year; offsite collections grow each year ReCAP Columbia Univeristy

  20. ReCAP Columbia University

  21. On Campus vs. Offsite 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

  22. ReCAP Columbia University

  23. ReCAP Columbia University

  24. 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 ReCAP Columbia University

  25. ReCAP Columbia University

  26. ReCAP Columbia University

  27. 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

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