Quarter	Average 1990 = 100
1975-03-31	103.53
1975-06-30	102.31
1975-09-30	103.11
1975-12-31	102.48
1976-03-31	104.33
1976-06-30	105.76
1976-09-30	105.4
1976-12-31	105.26
1977-03-31	105.57
1977-06-30	99.06
1977-09-30	98.76
1977-12-31	95.74
1978-03-31	92.62
1978-06-30	89.41
1978-09-30	88.41
1978-12-31	88.33
1979-03-31	88.53
1979-06-30	89.17
1979-09-30	89.71
1979-12-31	91.22
1980-03-31	91.5
1980-06-30	93.09
1980-09-30	93.07
1980-12-31	93.52
1981-03-31	94.06
1981-06-30	94.89
1981-09-30	95.88
1981-12-31	96.52
1982-03-31	97.79
1982-06-30	98.46
1982-09-30	99.67
1982-12-31	91.82
1983-03-31	91.47
1983-06-30	92.33
1983-09-30	93.24
1983-12-31	93.27
1984-03-31	93.77
1984-06-30	94.74
1984-09-30	94.92
1984-12-31	94.93
1985-03-31	94.58
1985-06-30	94.92
1985-09-30	95.07
1985-12-31	95.1
1986-03-31	94.57
1986-06-30	93.54
1986-09-30	92.44
1986-12-31	92.41
1987-03-31	93.21
1987-06-30	94.13
1987-09-30	94.42
1987-12-31	94.78
1988-03-31	95.53
1988-06-30	95.96
1988-09-30	95.13
1988-12-31	95.97
1989-03-31	96.93
1989-06-30	100.21
1989-09-30	99.7
1989-12-31	99.39
1990-03-31	100.07
1990-06-30	100.12
1990-09-30	100.17
1990-12-31	99.66
1991-03-31	98.75
1991-06-30	98.48
1991-09-30	96.13
1991-12-31	91.74
1992-03-31	86.47
1992-06-30	86.35
1992-09-30	84.74
1992-12-31	77.68
1993-03-31	72.21
1993-06-30	73.52
1993-09-30	73.3
1993-12-31	74.44
1994-03-31	77.07
1994-06-30	77.12
1994-09-30	79.03
1994-12-31	83.63
1995-03-31	85.18
1995-06-30	87.46
1995-09-30	88.37
1995-12-31	88
1996-03-31	84.76
1996-06-30	82.76
1996-09-30	85
1996-12-31	84.61
1997-03-31	83.77
1997-06-30	82.42
1997-09-30	81.28
1997-12-31	81.21
1998-03-31	80.35
1998-06-30	80.69
1998-09-30	81.78
1998-12-31	83.05
1999-03-31	81.48
1999-06-30	80.26
1999-09-30	79.59
1999-12-31	78.78
2000-03-31	77.68
2000-06-30	76.65
2000-09-30	76.5
2000-12-31	76.18
2001-03-31	78.31
2001-06-30	77.65
2001-09-30	78.3
2001-12-31	78.51