from American Libraries
Year | Number of Titles | Average Price | Price Change | Index |
---|---|---|---|---|
1984 | 203 | 97.37 | — | 100.0 |
1985–87 | N/A | N/A | N/A | N/A |
1988 | 190 | 101.88 | N/A | 104.6 |
1989 | 188 | 110.79 | 8.7% | 113.8 |
1990 | 188 | 101.45 | -8.4% | 104.2 |
1991 | 188 | 107.74 | 6.2% | 110.7 |
1992 | 187 | 112.18 | 4.1% | 115.2 |
1993 | 187 | 117.93 | 5.1% | 121.1 |
1994 | 187 | 121.98 | 3.4% | 125.3 |
1995 | 170 | 121.28 | -0.6% | 124.6 |
1996 | 170 | 129.37 | 6.7% | 132.9 |
1997 | 169 | 151.38 | 17% | 155.5 |
1998 | 169 | 162.32 | 7.2% | 166.7 |
1999 | 166 | 166.57 | 2.6% | 171.1 |
2000 | 168 | 195.16 | 17.2% | 200.4 |
2001 | 164 | 197.26 | 1.1% | 202.6 |
2002 | 165 | 202.60 | 2.7% | 208.1 |