Year	Average 1990 = 100
1975-12-31	75.87
1976-12-31	78.33
1977-12-31	82.48
1978-12-31	84.49
1979-12-31	85.53
1980-12-31	85.55
1981-12-31	82.02
1982-12-31	86.31
1983-12-31	88.32
1984-12-31	87.17
1985-12-31	87.27
1986-12-31	93.63
1987-12-31	98.02
1988-12-31	97.46
1989-12-31	96.6
1990-12-31	100
1991-12-31	99.25
1992-12-31	101.55
1993-12-31	104.7
1994-12-31	105.07
1995-12-31	109.27
1996-12-31	107.11
1997-12-31	102.15
1998-12-31	102.09
1999-12-31	100.61
2000-12-31	97.26
2001-12-31	97.84