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23 TABLE7B
ELECTRONIC
RESOURCES
AND MATERIALS
EXPENDITURESIN
ARL UNIVERSITY
LIBRARIES,2002-2006
2002-03
2003-04
2004-05
2005-06
a. Computer
File Expenditures
(monographic/onetime)
Total
$23,275,683
$32,098,404
$38,744,076
$48,793,981
Average
$225,978
$314,690
$372,539
$478,372
Median
$111,266
$191,148
$210,576
$336,338
N
103
102
104
102
b. Electronic
Serial Expenditures
Total
$205,300,292
$269,601,241
$328,166,027
$383,127,163
Average
$1,849,552
$2,450,920
$3,038,574
$3,547,474
Median
$1,649,361
$2,348,463
$2,824,962
$3,349,709
N
111
110
108
108
c. Total
Electronic
Resources
(Total
a+b)
Total
$228,575,974
$301,699,645
$366,910,103
$431,921,144
Average
$2,059,243
$2,718,015
$3,366,147
$3,962,579
Median
$1,775,865
$2,705,847
$3,144,841
$3,792,873
N
111
111
109
109
Total
Library
Materials
Expenditures**
Total
$950,275,167
$1,016,121,605
$1,031,619,722
$1,109,340,878
Average
$8,561,038
$9,154,249
$9,464,401
$10,177,439
Median
$7,707,153
$8,276,175
$8,662,668
$9,156,974
N
111
111
109
109
Electronic
Resources
Expenditures
as
a Percent
of Total
Materials
Expenditures
Average
25.02
31.33
37.46
40.93
Median
22.01
29.81
37.53
43.14
N
111
111
109
109
Expenditures
for Bibliographic
Utilities,
Networks,
etc. (External)
+
Total
$21,470,716
$17,420,520
$16,082,790+
$15,930,476
Average
$438,178
$335,010
$349,626+
$318,610
Median
$250,000
$94,837
$149,396+
$143,649
N
49
52
46+
50
**Figures
reflect
Materials
Expenditures
only
from
those institutions
that
reported
nonzero
figures
for
Total
Electronic
Resources.

25
ARL STATISTICS INTERACTIVE EDITION
ON THE WORLD WIDE WEB
The ARL Statistics are available through an interactive edition on the Web,
supplementing previously available data from 1992‐93. Maintained and supported by the
Geospatial and Statistical Data Center at the University of Virginia, this site offers researchers
access to ARL Statistics with documentation.1
The site offers maps and graphics depicting current library trends. For the particularly
adventurous, the site links to an interactive graphics and statistics page, allowing users to
manipulate their data queries. One may chose univariate, bivariate, or multivariate statistics in
addition to a vast array of selections with which to customize a query. The interactive pages
also include options for regional aggregates, customized samples of observations, simple rank
order tabulations of data, and the ability to create ratios of any two variables. These and other
capabilities are located at:
http://fisher.lib.virginia.edu/arl/
The ARL Statistics datafiles since 1908 can be retrieved in spreadsheet format from:
http://www.arl.org/stats/annualsurveys/arlstats/mrstat.shtml
The ARL Statistics and Measurement Program Web site is located at:
http://www.arl.org/stats/