15
Graph 3
Supply and Demand
in ARL Libraries, 1986-2006*
-50%
0%
50%
100%
150%
200%
250%
300%
19861988199019921994199619982000200220042006
Source: ARL Statistics 2005-06, Association of Research Libraries, Washington, D.C.
* Serial and monograph data includes electronic materials from 2000 onward.
%
Change
Since
1986
Interlibrary
Borrowing
(+289%)
Interlibrary
Lending
(+124%)
Grad. Students
(+100%)
Faculty (+23%)
Total Students
(+36%)
Serials
Purchased
(+51%)
Monographs
Purchased
(+1%)
Serials
Received
(+261%)
 
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