Year	Average 1990 = 100
1975-12-31	102.85
1976-12-31	105.18
1977-12-31	99.78
1978-12-31	89.68
1979-12-31	89.66
1980-12-31	92.79
1981-12-31	95.35
1982-12-31	96.93
1983-12-31	92.58
1984-12-31	94.59
1985-12-31	94.92
1986-12-31	93.22
1987-12-31	94.14
1988-12-31	95.64
1989-12-31	99.07
1990-12-31	100
1991-12-31	96.24
1992-12-31	83.79
1993-12-31	73.37
1994-12-31	79.23
1995-12-31	87.25
1996-12-31	84.3
1997-12-31	82.15
1998-12-31	81.48
1999-12-31	80.02
2000-12-31	76.76
2001-12-31	78.2