Year	Average 1990 = 100
1975-12-31	199.19
1976-12-31	155.29
1977-12-31	145.02
1978-12-31	136.21
1979-12-31	136.35
1980-12-31	127.57
1981-12-31	114.76
1982-12-31	112.82
1983-12-31	106.92
1984-12-31	104.65
1985-12-31	98.66
1986-12-31	104.1
1987-12-31	100.06
1988-12-31	97.63
1989-12-31	99.46
1990-12-31	99.5
1991-12-31	99.07
1992-12-31	83.91
1993-12-31	76.82
1994-12-31	73.81
1995-12-31	70.95
1996-12-31	77.94
1997-12-31	75.67
1998-12-31	76.36
1999-12-31	73.17
2000-12-31	72.8
2001-12-31	72.52