Quarter	Average 1990 = 100
1975-03-31	164.98
1975-06-30	165.43
1975-09-30	170.22
1975-12-31	169.28
1976-03-31	156.78
1976-06-30	157.12
1976-09-30	156.92
1976-12-31	154.34
1977-03-31	154.97
1977-06-30	151.28
1977-09-30	123.92
1977-12-31	122
1978-03-31	120.51
1978-06-30	123.44
1978-09-30	128.12
1978-12-31	128.14
1979-03-31	134.78
1979-06-30	137.52
1979-09-30	132.68
1979-12-31	132.01
1980-03-31	132
1980-06-30	125.4
1980-09-30	120.86
1980-12-31	119.49
1981-03-31	119.58
1981-06-30	120.47
1981-09-30	118.3
1981-12-31	117.04
1982-03-31	114.29
1982-06-30	114.98
1982-09-30	115.44
1982-12-31	101.25
1983-03-31	97.26
1983-06-30	94.75
1983-09-30	93.89
1983-12-31	94.19
1984-03-31	96.08
1984-06-30	96.38
1984-09-30	96.83
1984-12-31	98.2
1985-03-31	97.37
1985-06-30	94.65
1985-09-30	90.99
1985-12-31	90.57
1986-03-31	91.06
1986-06-30	90.84
1986-09-30	91.08
1986-12-31	89.67
1987-03-31	87.38
1987-06-30	88.64
1987-09-30	92.15
1987-12-31	91.5
1988-03-31	92.62
1988-06-30	91.82
1988-09-30	92.46
1988-12-31	95.83
1989-03-31	97.5
1989-06-30	95.39
1989-09-30	96.6
1989-12-31	97.98
1990-03-31	98.19
1990-06-30	102
1990-09-30	100.66
1990-12-31	99.75
1991-03-31	100.76
1991-06-30	98.83
1991-09-30	99.21
1991-12-31	99.97
1992-03-31	99.81
1992-06-30	100.18
1992-09-30	94.6
1992-12-31	93.55
1993-03-31	94.25
1993-06-30	85.39
1993-09-30	83.71
1993-12-31	80.57
1994-03-31	81.29
1994-06-30	81.18
1994-09-30	81.21
1994-12-31	80
1995-03-31	77.52
1995-06-30	80.8
1995-09-30	80.67
1995-12-31	82.23
1996-03-31	81.97
1996-06-30	80.42
1996-09-30	80.25
1996-12-31	79.15
1997-03-31	78.07
1997-06-30	76.93
1997-09-30	77.05
1997-12-31	76.68
1998-03-31	76.05
1998-06-30	76.7
1998-09-30	77.87
1998-12-31	77.49
1999-03-31	76.31
1999-06-30	75.77
1999-09-30	75.58
1999-12-31	74.61
2000-03-31	73.88
2000-06-30	74.4
2000-09-30	73.29
2000-12-31	74.41
2001-03-31	74.15
2001-06-30	73.53
2001-09-30	74.28
2001-12-31	74.21