Quarter	Average 1990 = 100
1975-03-31	135.22
1975-06-30	126.36
1975-09-30	127.6
1975-12-31	126.05
1976-03-31	122.92
1976-06-30	117.67
1976-09-30	110.96
1976-12-31	111.74
1977-03-31	113.03
1977-06-30	112.41
1977-09-30	113.88
1977-12-31	116.81
1978-03-31	112.13
1978-06-30	112.48
1978-09-30	113.36
1978-12-31	113.89
1979-03-31	116.15
1979-06-30	113.12
1979-09-30	115.42
1979-12-31	115.53
1980-03-31	111.15
1980-06-30	113.12
1980-09-30	110.96
1980-12-31	104.82
1981-03-31	102.2
1981-06-30	100.54
1981-09-30	104.74
1981-12-31	103.04
1982-03-31	100.27
1982-06-30	101.12
1982-09-30	99.66
1982-12-31	102.49
1983-03-31	100.4
1983-06-30	96.65
1983-09-30	94.83
1983-12-31	93.51
1984-03-31	95.19
1984-06-30	93.62
1984-09-30	93.14
1984-12-31	94.28
1985-03-31	93.66
1985-06-30	93.18
1985-09-30	95.71
1985-12-31	98.18
1986-03-31	98.53
1986-06-30	100.58
1986-09-30	97.07
1986-12-31	98.5
1987-03-31	97.31
1987-06-30	97.04
1987-09-30	96.38
1987-12-31	97.82
1988-03-31	96.35
1988-06-30	95.35
1988-09-30	94.05
1988-12-31	93.98
1989-03-31	92.89
1989-06-30	94.16
1989-09-30	95
1989-12-31	99.71
1990-03-31	100.39
1990-06-30	99.4
1990-09-30	100.06
1990-12-31	100.9
1991-03-31	97.69
1991-06-30	96.97
1991-09-30	98.88
1991-12-31	100.7
1992-03-31	99.44
1992-06-30	100.25
1992-09-30	106.12
1992-12-31	105.23
1993-03-31	98.33
1993-06-30	94.81
1993-09-30	94.21
1993-12-31	95.71
1994-03-31	95.14
1994-06-30	97.17
1994-09-30	97.57
1994-12-31	97.36
1995-03-31	96.1
1995-06-30	97.44
1995-09-30	97.85
1995-12-31	97.55
1996-03-31	97.71
1996-06-30	99.75
1996-09-30	99.88
1996-12-31	103.3
1997-03-31	102.15
1997-06-30	98.8
1997-09-30	96.71
1997-12-31	95.45
1998-03-31	91.89
1998-06-30	93.72
1998-09-30	96.24
1998-12-31	95.61
1999-03-31	92.52
1999-06-30	91.1
1999-09-30	90.75
1999-12-31	88.37
2000-03-31	86.54
2000-06-30	88.21
2000-09-30	85.32
2000-12-31	88.01
2001-03-31	87.24
2001-06-30	85.65
2001-09-30	87.55
2001-12-31	87.12