Quarter	Average 1990 = 100
1975-03-31	196.03
1975-06-30	198.31
1975-09-30	199.83
1975-12-31	198.95
1976-03-31	178.6
1976-06-30	161.37
1976-09-30	166.06
1976-12-31	159.68
1977-03-31	155.28
1977-06-30	153.69
1977-09-30	153.76
1977-12-31	150.5
1978-03-31	146.05
1978-06-30	145.5
1978-09-30	143.32
1978-12-31	138.63
1979-03-31	136.87
1979-06-30	137.56
1979-09-30	137.92
1979-12-31	136.1
1980-03-31	135.72
1980-06-30	133.02
1980-09-30	131.51
1980-12-31	128.7
1981-03-31	124.83
1981-06-30	119.78
1981-09-30	119.03
1981-12-31	115.13
1982-03-31	113.85
1982-06-30	112.29
1982-09-30	112.07
1982-12-31	111.17
1983-03-31	112.38
1983-06-30	110.42
1983-09-30	108.98
1983-12-31	107.24
1984-03-31	105.91
1984-06-30	105.65
1984-09-30	105.08
1984-12-31	104.03
1985-03-31	103.22
1985-06-30	100.68
1985-09-30	97.82
1985-12-31	97.81
1986-03-31	99.75
1986-06-30	100
1986-09-30	101.87
1986-12-31	103.47
1987-03-31	102.87
1987-06-30	100.91
1987-09-30	100.06
1987-12-31	99.87
1988-03-31	99.15
1988-06-30	97.52
1988-09-30	96.55
1988-12-31	97.17
1989-03-31	97.33
1989-06-30	97.99
1989-09-30	99.4
1989-12-31	99.19
1990-03-31	100.07
1990-06-30	100.81
1990-09-30	99.99
1990-12-31	99.17
1991-03-31	99.47
1991-06-30	98.39
1991-09-30	98.01
1991-12-31	98.51
1992-03-31	98.73
1992-06-30	98.31
1992-09-30	97.75
1992-12-31	87.33
1993-03-31	80.88
1993-06-30	82
1993-09-30	80.78
1993-12-31	78.01
1994-03-31	77.23
1994-06-30	78.8
1994-09-30	76.54
1994-12-31	74.91
1995-03-31	70.63
1995-06-30	66.39
1995-09-30	69.86
1995-12-31	70.26
1996-03-31	73.14
1996-06-30	75.85
1996-09-30	76.55
1996-12-31	77.45
1997-03-31	76.92
1997-06-30	76.23
1997-09-30	75.97
1997-12-31	76.11
1998-03-31	75.27
1998-06-30	75.77
1998-09-30	76.27
1998-12-31	76.52
1999-03-31	75.6
1999-06-30	74.72
1999-09-30	74.38
1999-12-31	73.79
2000-03-31	73.05
2000-06-30	72.3
2000-09-30	72.01
2000-12-31	71.48
2001-03-31	72.85
2001-06-30	72.18
2001-09-30	72.41
2001-12-31	72.49