Quarter	Average 1990 = 100
1975-03-31	62.72
1975-06-30	62.05
1975-09-30	60.77
1975-12-31	60.85
1976-03-31	62.88
1976-06-30	65.51
1976-09-30	66.34
1976-12-31	69.71
1977-03-31	69.99
1977-06-30	70.81
1977-09-30	72.31
1977-12-31	73.39
1978-03-31	75.45
1978-06-30	75.12
1978-09-30	74.27
1978-12-31	77.25
1979-03-31	78.15
1979-06-30	77.63
1979-09-30	78.44
1979-12-31	80.8
1980-03-31	80.55
1980-06-30	79.59
1980-09-30	79.43
1980-12-31	77.13
1981-03-31	75.5
1981-06-30	75.35
1981-09-30	75.17
1981-12-31	78.38
1982-03-31	78.29
1982-06-30	80.31
1982-09-30	81.08
1982-12-31	82.66
1983-03-31	84.9
1983-06-30	85.19
1983-09-30	84.02
1983-12-31	84.29
1984-03-31	84.65
1984-06-30	84.9
1984-09-30	83.99
1984-12-31	83.44
1985-03-31	83.05
1985-06-30	83.55
1985-09-30	85.02
1985-12-31	87
1986-03-31	89.56
1986-06-30	90.34
1986-09-30	92.68
1986-12-31	95.2
1987-03-31	97.57
1987-06-30	96.87
1987-09-30	96.71
1987-12-31	97.9
1988-03-31	97.81
1988-06-30	96.83
1988-09-30	95.62
1988-12-31	96.24
1989-03-31	95.04
1989-06-30	95.07
1989-09-30	95.36
1989-12-31	98.06
1990-03-31	100.1
1990-06-30	99.78
1990-09-30	99.49
1990-12-31	100.63
1991-03-31	100.61
1991-06-30	97.95
1991-09-30	98.27
1991-12-31	99.8
1992-03-31	100.06
1992-06-30	99.97
1992-09-30	102.63
1992-12-31	105.73
1993-03-31	106.6
1993-06-30	105.43
1993-09-30	105.79
1993-12-31	106.59
1994-03-31	104.72
1994-06-30	105.52
1994-09-30	107.53
1994-12-31	107.77
1995-03-31	111.07
1995-06-30	112.88
1995-09-30	111.54
1995-12-31	112.07
1996-03-31	110.61
1996-06-30	108.5
1996-09-30	108.95
1996-12-31	107.52
1997-03-31	105.65
1997-06-30	104.38
1997-09-30	102.31
1997-12-31	103.33
1998-03-31	102.71
1998-06-30	103.76
1998-09-30	104.77
1998-12-31	105.37
1999-03-31	103.79
1999-06-30	102.33
1999-09-30	101.64
1999-12-31	100.52
2000-03-31	99.32
2000-06-30	97.99
2000-09-30	97.5
2000-12-31	96.65
2001-03-31	99.09
2001-06-30	98.02
2001-09-30	98.41
2001-12-31	98.57