16
Table 4 
Expenditure Trends in ARL Libraries, 1986‐2006 
Median Values for Time‐Series Trends – Unadjusted dollar figures22 
 
Year  Library 
Materials 
Serial
Exp.
Monograph
Exp.
Total 
Salary
Operating 
Exp. 
Total 
 
CPI
(Libraries)  (105)  (100) (97) (104) (104)  (105) 
       
1986 
2,705,297  1,496,775 1,120,645 4,011,436 1,111,914  8,361,092 
109.6
1987 
3,058,479  1,769,960 1,064,484 4,361,646 1,180,167  8,990,001 
113.6
1988 
3,369,896  1,947,559 1,141,226 4,618,335 1,198,674  9,557,623 
118.3
1989 
3,577,405  2,113,976 1,106,073 5,236,292 1,364,558  10,183,315 
124.0
1990 
3,903,358  2,296,910 1,330,747 5,469,333 1,386,618  11,241,022 
130.7
1991 
4,064,344  2,548,687 1,400,738 5,885,814 1,445,735  11,990,794 
136.2
1992 
4,156,510  2,620,832 1,353,865 6,050,222 1,390,245  12,249,150 
140.3
1993 
4,316,674  2,918,569 1,295,807 5,962,470 1,561,122  12,265,696 
144.5
1994 
4,572,276  2,912,495 1,309,807 6,047,803 1,676,701  12,767,348 
148.2
1995 
4,715,203  3,131,033 1,365,575 6,312,770 1,853,586  13,171,893 
152.4
1996 
5,126,482  3,389,118 1,444,015 6,664,021 1,997,233  13,870,378 
156.9
1997 
5,562,742  3,642,541 1,460,234 6,893,582 2,039,957  14,526,674 
160.5
1998 
5,795,223  3,816,497 1,486,764 7,163,979 2,072,903  15,329,371 
163.0
1999 
6,232,365  4,095,934 1,506,651 7,476,532 2,069,887  16,737,261 
166.6
2000 
6,744,281  4,430,812 1,657,349 7,811,403 1,991,852  17,221,441 
172.2
2001 
7,322,507  4,660,349 1,864,023 8,106,666 2,280,493  17,620,048 
177.5
2002 
7,599,249  4,939,225 1,812,826 8,488,255 2,136,616  18,456,038 
180.1
2003 
8,273,171  5,392,007 1,873,157 8,813,191 2,073,913  19,030,188 
183.9
2004 
8,286,431 5,580,157 1,839,412 9,015,741 2,274,878 19,953,776 189.4
2005 
8,801,962 5,962,446 1,784,841 9,268,364 2,243,592 20,663,012 195.4
2006 
9,174,734 6,307,292 2,044,272 9,647,695 2,540,171 21,694,210 203.5
Avg annual  
% change 
6.3% 7.5% 3.1% 4.5% 4.2% 4.9% 3.1%
 
Operating expenditures, including many automation expenditures, have doubled since 1986, 
but during the last five years have remained at relatively stable levels of investment.  The total salary 
expenditures median has increased only slightly over the past four years.  Monograph expenditures 
continue to increase.  The annual consumer price index (CPI), included in Graph 4, provides a 
comparative reference for the increases in library expenditures. 
 
22 Time series for Serial Expenditures and Monograph Expenditures were revised due to unavailable data. 
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