Quarter	Average 1990 = 100
1975-03-31	96.95
1975-06-30	95.78
1975-09-30	94.02
1975-12-31	93.18
1976-03-31	94.48
1976-06-30	97.09
1976-09-30	97.93
1976-12-31	102.71
1977-03-31	102.57
1977-06-30	103.65
1977-09-30	104.48
1977-12-31	104.27
1978-03-31	107.51
1978-06-30	106.58
1978-09-30	105
1978-12-31	108.06
1979-03-31	108.58
1979-06-30	106.52
1979-09-30	106.96
1979-12-31	108.03
1980-03-31	107.35
1980-06-30	107.67
1980-09-30	107.69
1980-12-31	105.09
1981-03-31	102.59
1981-06-30	101.85
1981-09-30	101.73
1981-12-31	102.28
1982-03-31	96.94
1982-06-30	92.01
1982-09-30	91.72
1982-12-31	91.37
1983-03-31	92.65
1983-06-30	91.69
1983-09-30	90.19
1983-12-31	89.32
1984-03-31	89.18
1984-06-30	89.68
1984-09-30	89.82
1984-12-31	89.68
1985-03-31	89.88
1985-06-30	89.67
1985-09-30	90.36
1985-12-31	91.5
1986-03-31	92.84
1986-06-30	93.94
1986-09-30	94.83
1986-12-31	96.17
1987-03-31	98.16
1987-06-30	97.63
1987-09-30	97.32
1987-12-31	97.54
1988-03-31	97.46
1988-06-30	96.68
1988-09-30	95.65
1988-12-31	96.09
1989-03-31	95.24
1989-06-30	95.29
1989-09-30	95.57
1989-12-31	97.14
1990-03-31	99.14
1990-06-30	100.13
1990-09-30	100.09
1990-12-31	100.67
1991-03-31	100.85
1991-06-30	99.15
1991-09-30	99.27
1991-12-31	100.35
1992-03-31	100.53
1992-06-30	100.32
1992-09-30	102.18
1992-12-31	104.65
1993-03-31	105.03
1993-06-30	104.43
1993-09-30	102.07
1993-12-31	101.5
1994-03-31	103.54
1994-06-30	104.6
1994-09-30	105.97
1994-12-31	106.27
1995-03-31	108.4
1995-06-30	110.18
1995-09-30	109.08
1995-12-31	109.48
1996-03-31	108.42
1996-06-30	106.85
1996-09-30	106.95
1996-12-31	105.63
1997-03-31	103.92
1997-06-30	102.98
1997-09-30	101.51
1997-12-31	102.2
1998-03-31	101.67
1998-06-30	102.29
1998-09-30	103.01
1998-12-31	103.72
1999-03-31	102.63
1999-06-30	101.52
1999-09-30	101.1
1999-12-31	100.34
2000-03-31	99.39
2000-06-30	98.57
2000-09-30	98.27
2000-12-31	97.65
2001-03-31	99.35
2001-06-30	98.53
2001-09-30	98.86
2001-12-31	98.99