Circulation Data: Avery Library FY13

Circulation Data: Avery Library FY13

Zack LaneReCAP Coordinator

July 2013

ReCAPColumbia University

Looks at Avery Library circulation activity Is only one measure of collection usage Majority of Avery collections are non-

circulating No circulation data for non-circulating

collections (or is there…?) Circ Desk uses several happening locations:

Avery, Butler, BorrowDirect, HSL Separate presentation available for system-

wide data and analysis

Avery Circulation Data



Avery Circ Happening Location Five primary types of circulation activity: charge,

discharge, renewal, recall and hold Most renewals and recalls are performed

dynamically by patrons in the OPAC happening location

Note: circulation data for Avery includes both on-campus and Offsite collections

Five primary patron groups:◦ ACO◦ GRD◦ REG◦ OFF◦ VIS


24,781 23,926 23,538 22,680 21,049

19,848 18,670

16,422 14,451

13,155

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 FY12/13

Total Charge Activity at Avery Library


0

5,000

10,000

15,000

20,000

25,000

30,000


Primary Types of Circulation Activity at Avery Library

Charges Discharges Renewals Recalls Holds


Observations Charge volume at Avery in FY13 is 53.1% of

FY04 System-wide it is 67.7% of FY04 Volume of discharge predictably mirrors

charges Other types of circulation activity happen in

much lower volume Renewals, recalls and holds occur primarily

via CLIO


Circ Activity by Collection Over time Reserves and Ware have taken a

smaller share of activity Likely linked to transfer of Ware collections

to ReCAP Offsite activity has doubled as transfers

continue Charges for non-circulating collections are

made to carrels and offices but do not accurately reflect aggregate usage


Avery Reserves47.2%

Fine Arts19.5%

Architecture16.5%

Ware9.6%

Offsite6.1%

Everything Else0.4%

Fine Arts Other0.4%

Architecture Other0.2%

Ware Other0.0%

Classics0.0%

Charge Activity at Avery by Collection


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%


Proportional Charge Activity at Avery by Collection

Avery Reserves Fine Arts Architecture Ware Offsite Everything Else Fine Arts Other Architecture Other Ware Other Classics


Circ Activity by Sub-Collection Architecture, Fine Arts and Offsite

collections are commonly charged to patron group ACO (carrels and offices)

Circulating Ware collections are charged to all user groups

Note: Offsite Ware collections can be delivered to any department library

Reserve collections have shown steep decline likely due to transition to e-reserves


0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500


Charge Activity of Architecture Stacks (ave) by Patron Group

GRD OFF REG VIS ACO


0

1,000

2,000

3,000

4,000

5,000

6,000


Charge Activity of Fine Arts (fax) by Patron Group

GRD OFF REG VIS ACO


0

500

1,000

1,500

2,000

2,500

3,000


Charge Activity of Ware (war) by Patron Group

GRD OFF REG VIS ACO


0

2,000

4,000

6,000

8,000

10,000

12,000

14,000


Charge Activity of Reserves (ave,res) by Patron Group

GRD OFF REG ACO VIS


0

200

400

600

800

1,000

1,200

1,400

1,600

1,800


Charge Activity of Avery Offsite (off,ave and off,fax) by Patron Group

GRD OFF REG ACO VIS


Avery Circulation by Patron Group Patron Group definitions have changed:

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

Steady level of charges to patron group ACO Declines for Reserves and Ware Suggests primary, on-shelf collections

maintain usage for past decade Declining usage of hardcopy Reserves has

put most dramatic effect on overall circulation statistics


0

5,000

10,000

15,000

20,000

25,000

30,000


Charge Activity at Avery by Patron Group at Avery Library

GRD OFF REG VIS ACO


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%


Proportional Charge Activity at Avery by Patron Group at Avery Libarary

GRD OFF REG VIS ACO


0

2,000

4,000

6,000

8,000

10,000

12,000


Charge Activity at Avery by Patron Group at Avery Library

GRD OFF REG VIS ACO


Monthly Activity by Patron Group Closer look at patron group breakdown More than half total charges were to ACO in

FY13 Patron Group definitions have changed:

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

Monthly patterns fit seasonal curves of academic calendar


0

500

1,000

1,500

2,000

2,5007/

1/20

03

10/1

/200

3

1/1/

2004

4/1/

2004

7/1/

2004

10/1

/200

4

1/1/

2005

4/1/

2005

7/1/

2005

10/1

/200

5

1/1/

2006

4/1/

2006

7/1/

2006

10/1

/200

6

1/1/

2007

4/1/

2007

7/1/

2007

10/1

/200

7

1/1/

2008

4/1/

2008

7/1/

2008

10/1

/200

8

1/1/

2009

4/1/

2009

7/1/

2009

10/1

/200

9

1/1/

2010

4/1/

2010

7/1/

2010

10/1

/201

0

1/1/

2011

4/1/

2011

7/1/

2011

10/1

/201

1

1/1/

2012

4/1/

2012

7/1/

2012

10/1

/201

2

1/1/

2013

Monthly Charge Activity by Patron Group at Avery Library

GRD OFF REG VIS ACO


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

7/1/

2003

10/1

/200

3

1/1/

2004

4/1/

2004

7/1/

2004

10/1

/200

4

1/1/

2005

4/1/

2005

7/1/

2005

10/1

/200

5

1/1/

2006

4/1/

2006

7/1/

2006

10/1

/200

6

1/1/

2007

4/1/

2007

7/1/

2007

10/1

/200

7

1/1/

2008

4/1/

2008

7/1/

2008

10/1

/200

8

1/1/

2009

4/1/

2009

7/1/

2009

10/1

/200

9

1/1/

2010

4/1/

2010

7/1/

2010

10/1

/201

0

1/1/

2011

4/1/

2011

7/1/

2011

10/1

/201

1

1/1/

2012

4/1/

2012

7/1/

2012

10/1

/201

2

1/1/

2013

Proportional Monthly Charge Activity by Patron Groupat Avery Library

GRD OFF REG VIS ACO


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

January February March April May June July August September October November December

Proportional Calendar Month Charge Activity by Patron Groupat Avery Library

GRD OFF REG VIS ACO


Patron Group Activity Charges to ACO (carrels) account for greater

portion of activity Graduate students are the single largest

user group “Faculty” usage likely due to grad students

with temporary OFF borrowing privileges


GRD28.2%

OFF5.8%

REG23.2%

VIS0.6%

ACO42.1%

Total Charge Activity by Patron Group at Avery Library since FY04


GRD17.8%

OFF9.2%

REG14.5%

VIS0.3%

ACO58.1%

FY13 Charge Activity by Patron Group at Avery Library


Collection Use by Patron Group Data includes all fiscal years Usage data by patron group differs

dramatically for ACO 95+% of activity for regular patron groups

is for Reserves and Ware ACO

◦ Fine Arts : 45.0%◦ Architecture : 38.4%◦ Offsite : 13.8%


Avery Reserves77.7%

Ware19.8%

Fine Arts0.6%

Offsite0.6%

Architecture0.5%Everything Else

0.7%


Ware Other0.0%

GRD Charge Activity at Avery Library


Avery Reserves69.0%

Ware25.1%

Fine Arts0.8%

Offsite2.2%

Architecture0.7% Everything

Else2.2%


Ware Other0.1%

Fine Arts Other0.0%

OFF Charge Activity at Avery Library


Avery Reserves88.8%

Ware8.8%

Fine Arts1.4%

Offsite0.2%

Architecture0.4%

Everything Else0.4%


Ware Other0.0%

Fine Arts Other0.0%Classics

0.0%

REG Charge Activity at Avery Library


Avery Reserves54.2%

Ware43.1%

Fine Arts0.6%

Offsite1.0% Architecture

0.2%

Everything Else0.7%

Ware Other0.2%

VIS Charge Activity at Avery Library


Avery Reserves0.7%

Ware0.6%

Fine Arts45.0%

Offsite13.8%

Architecture38.4%


Everything Else0.0%

Ware Other0.0%

Fine Arts Other1.0%

Classics0.0%

ACO Charge Activity at Avery Library

More information and data can be found on the Avery/ReCAP website

ReCAP Data Center includes more information about system-wide data and special projects

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://library.columbia.edu/bts/recap/projects/avery.html



https://library.columbia.edu/bts/recap/data.html

https://library.columbia.edu/bts/recap/data.html

https://library.columbia.edu/bts/recap.html

https://library.columbia.edu/bts/recap.html

Documents

Circulation Data: Avery Library FY13