Year	Average 1990 = 100
1975-12-31	103.49
1976-12-31	105.54
1977-12-31	94.86
1978-12-31	88.17
1979-12-31	90.99
1980-12-31	93.36
1981-12-31	96.8
1982-12-31	91.37
1983-12-31	93.37
1984-12-31	94.98
1985-12-31	94.95
1986-12-31	92.3
1987-12-31	93.9
1988-12-31	96.55
1989-12-31	99.21
1990-12-31	99.22
1991-12-31	87.55
1992-12-31	77.49
1993-12-31	75.55
1994-12-31	84.42
1995-12-31	86.78
1996-12-31	84.54
1997-12-31	80.65
1998-12-31	83.06
1999-12-31	77.89
2000-12-31	78.08
2001-12-31	78.38