Year	Average 1990 = 100
1975-12-31	198.33
1976-12-31	166.46
1977-12-31	153.31
1978-12-31	143.36
1979-12-31	137.11
1980-12-31	132.23
1981-12-31	119.67
1982-12-31	112.34
1983-12-31	109.74
1984-12-31	105.16
1985-12-31	99.85
1986-12-31	101.3
1987-12-31	100.92
1988-12-31	97.59
1989-12-31	98.49
1990-12-31	100
1991-12-31	98.59
1992-12-31	95.5
1993-12-31	80.4
1994-12-31	76.85
1995-12-31	69.32
1996-12-31	75.75
1997-12-31	76.3
1998-12-31	75.96
1999-12-31	74.62
2000-12-31	72.21
2001-12-31	72.49