Year	Average 1990 = 100
1975-12-31	60.66
1976-12-31	70.56
1977-12-31	75.2
1978-12-31	78.37
1979-12-31	81.22
1980-12-31	76.22
1981-12-31	78.34
1982-12-31	84.25
1983-12-31	83.99
1984-12-31	82.95
1985-12-31	88.9
1986-12-31	96.45
1987-12-31	99.11
1988-12-31	95.97
1989-12-31	100.76
1990-12-31	101.53
1991-12-31	101.33
1992-12-31	105.93
1993-12-31	105.14
1994-12-31	108.31
1995-12-31	111.5
1996-12-31	107.07
1997-12-31	103.13
1998-12-31	105.06
1999-12-31	99.42
2000-12-31	98.95
2001-12-31	98.69