Year	Average 1990 = 100
1975-12-31	61.63
1976-12-31	66.12
1977-12-31	71.64
1978-12-31	75.52
1979-12-31	78.77
1980-12-31	79.17
1981-12-31	76.11
1982-12-31	80.6
1983-12-31	84.59
1984-12-31	84.24
1985-12-31	84.68
1986-12-31	91.98
1987-12-31	97.26
1988-12-31	96.62
1989-12-31	95.88
1990-12-31	100
1991-12-31	99.15
1992-12-31	102.13
1993-12-31	106.11
1994-12-31	106.4
1995-12-31	111.88
1996-12-31	108.9
1997-12-31	103.89
1998-12-31	104.16
1999-12-31	102.06
2000-12-31	97.87
2001-12-31	98.53