Quarter	Average 1990 = 100
1975-03-31	76.99
1975-06-30	76.49
1975-09-30	75.1
1975-12-31	75.42
1976-03-31	76.09
1976-06-30	76.9
1976-09-30	78.26
1976-12-31	82.03
1977-03-31	82.08
1977-06-30	82.7
1977-09-30	82.66
1977-12-31	82.47
1978-03-31	84.66
1978-06-30	84.71
1978-09-30	83.2
1978-12-31	85.42
1979-03-31	86.4
1979-06-30	85.02
1979-09-30	84.76
1979-12-31	85.9
1980-03-31	86.22
1980-06-30	85.52
1980-09-30	86.03
1980-12-31	84.43
1981-03-31	82.12
1981-06-30	80.66
1981-09-30	80.73
1981-12-31	84.51
1982-03-31	84.61
1982-06-30	85.45
1982-09-30	86.65
1982-12-31	88.47
1983-03-31	89.68
1983-06-30	88.23
1983-09-30	87.65
1983-12-31	87.72
1984-03-31	87.54
1984-06-30	87.79
1984-09-30	86.88
1984-12-31	86.49
1985-03-31	85.94
1985-06-30	86.23
1985-09-30	87.61
1985-12-31	89.2
1986-03-31	91.39
1986-06-30	92.23
1986-09-30	94.4
1986-12-31	96.35
1987-03-31	98.14
1987-06-30	97.67
1987-09-30	97.61
1987-12-31	98.66
1988-03-31	98.77
1988-06-30	97.89
1988-09-30	96.33
1988-12-31	96.87
1989-03-31	95.82
1989-06-30	95.96
1989-09-30	96.28
1989-12-31	98.32
1990-03-31	100.05
1990-06-30	100.01
1990-09-30	99.56
1990-12-31	100.39
1991-03-31	100.39
1991-06-30	98.36
1991-09-30	98.53
1991-12-31	99.72
1992-03-31	100.02
1992-06-30	99.8
1992-09-30	101.87
1992-12-31	104.44
1993-03-31	104.87
1993-06-30	104.3
1993-09-30	104.43
1993-12-31	105.18
1994-03-31	103.68
1994-06-30	104.4
1994-09-30	105.97
1994-12-31	106.17
1995-03-31	108.45
1995-06-30	110.06
1995-09-30	109.09
1995-12-31	109.54
1996-03-31	108.56
1996-06-30	107.07
1996-09-30	107.1
1996-12-31	105.71
1997-03-31	103.69
1997-06-30	102.61
1997-09-30	100.86
1997-12-31	101.55
1998-03-31	100.96
1998-06-30	101.69
1998-09-30	102.4
1998-12-31	103.25
1999-03-31	102.05
1999-06-30	100.76
1999-09-30	100.27
1999-12-31	99.39
2000-03-31	98.3
2000-06-30	97.37
2000-09-30	97.03
2000-12-31	96.35
2001-03-31	98.3
2001-06-30	97.37
2001-09-30	97.74
2001-12-31	97.92