Year	Average 1990 = 100
1975-12-31	524.38
1976-12-31	488.09
1977-12-31	387.9
1978-12-31	310.21
1979-12-31	258.33
1980-12-31	251.86
1981-12-31	250.31
1982-12-31	221.19
1983-12-31	179.13
1984-12-31	149.75
1985-12-31	133.28
1986-12-31	121.36
1987-12-31	111.81
1988-12-31	105.98
1989-12-31	102.68
1990-12-31	100
1991-12-31	100.87
1992-12-31	104.32
1993-12-31	98.16
1994-12-31	94.18
1995-12-31	95.87
1996-12-31	95.34
1997-12-31	93.2
1998-12-31	92.04
1999-12-31	91.1
2000-12-31	88.83
2001-12-31	89.32