| Public Libraries in the US |
| Analysis of 2001 data |
| Rank Order Tables |
| Analyzing Trends |
| Trends Results |
| Tables |

| First Quartile | Second Quartile | Third Quartile | Fourth Quartile | 95% | |
|---|---|---|---|---|---|
| 1990 | . | . | . | . | . |
| 1991 | 5.74 | 4.80 | 5.14 | 4.24 | 3.33 |
| 1992 | 6.06 | 4.97 | 5.25 | 4.57 | 3.75 |
| 1993 | 6.03 | 5.00 | 5.25 | 4.61 | 3.84 |
| 1994 | 5.81 | 4.78 | 5.05 | 4.48 | 3.77 |
| 1995 | 5.94 | 4.85 | 5.18 | 4.52 | 3.77 |
| 1996 | 5.91 | 4.99 | 5.15 | 4.51 | 3.78 |
| 1997 | 5.94 | 5.01 | 5.28 | 4.63 | 3.89 |
| 1998 | 5.88 | 5.04 | 5.30 | 4.68 | 3.98 |
| 1999 | 5.95 | 5.02 | 5.39 | 4.70 | 4.00 |
| 2000 | 5.84 | 5.05 | 5.44 | 4.70 | 4.05 |
| 2001 | 5.93 | 5.19 | 5.42 | 4.69 | 4.09 |
| 2002 | 5.96 | 5.37 | 5.65 | 4.82 | 4.24 |
| # increase, 1991-2002 |
0.22 | 0.57 | 0.51 | 0.58 | 0.91 |
| % increase, 1991-2002 |
3.8 | 11.9 | 9.9 | 13.7 | 27.3 |
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