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Reference Transactions per capita, 1991-2002

Abstract

Reference transactions per capita rose over the period reflecting an increase in library services. There is an interesting pattern here, though with the very largest libraries having the greatest number with the smallest libraries having the second largest transactions per capita. The second and third quartile libraries grew at the highest rates, however.

There is a Rank Order Table for this variable in 2002 and a summary table of the ranks by state from 1992-2002.

A line plot of the mean number of reference transactions at the five groups by year

Reference Transactions per capita by Group
	First Quartile	Second Quartile	Third Quartile	Fourth Quartile	95%
1990	.	.	.	.	.
1991	0.86	0.67	0.65	0.74	0.97
1992	0.81	0.70	0.69	0.82	1.00
1993	0.89	0.71	0.70	0.84	1.04
1994	0.84	0.68	0.69	0.83	1.06
1995	0.93	0.76	0.74	0.88	1.06
1996	0.94	0.77	0.78	0.89	1.09
1997	0.90	0.80	0.78	0.89	1.07
1998	0.99	0.79	0.79	0.91	1.09
1999	0.98	0.85	0.84	0.92	1.09
2000	0.96	0.83	0.83	0.90	1.07
2001	0.98	0.87	0.83	0.88	1.07
2002	0.98	0.85	0.82	0.88	1.11
# increase, 1991-2002	0.12	0.18	0.17	0.14	0.14
% increase, 1991-2002	14.0	26.9	26.2	18.9	14.4

Note: The value for the Town of Ulster Public Library, Kinston, New York (newkey = NY0259) for POPU_UND for 1992 was 8,478, 1993 was 1, and 1994 was 11,507. In this analysis, the value for 1993 was changed to 9,993, the mean of the 1992 and 1994 figures.

October 19, 2004

Analysis of 2001 data
Analyzing Trends
Trends Results
Tables
Public Libraries in the United States
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