Quarter	Average 1990 = 100
1975-03-31	511.03
1975-06-30	513.07
1975-09-30	493.23
1975-12-31	474.81
1976-03-31	487.16
1976-06-30	487.14
1976-09-30	476.96
1976-12-31	470.88
1977-03-31	470.18
1977-06-30	469.61
1977-09-30	473
1977-12-31	461.22
1978-03-31	425.97
1978-06-30	431.83
1978-09-30	411.78
1978-12-31	407.03
1979-03-31	407.55
1979-06-30	401.9
1979-09-30	388.11
1979-12-31	370.12
1980-03-31	372.42
1980-06-30	333.53
1980-09-30	337.01
1980-12-31	334.82
1981-03-31	328.24
1981-06-30	322.5
1981-09-30	331.15
1981-12-31	321.2
1982-03-31	318.94
1982-06-30	295.69
1982-09-30	296.23
1982-12-31	291.05
1983-03-31	253.8
1983-06-30	260.36
1983-09-30	246.44
1983-12-31	237.94
1984-03-31	219.88
1984-06-30	233.77
1984-09-30	211.08
1984-12-31	210.75
1985-03-31	199.87
1985-06-30	192.14
1985-09-30	180.64
1985-12-31	149.24
1986-03-31	144.47
1986-06-30	143.28
1986-09-30	142.77
1986-12-31	131.36
1987-03-31	130.58
1987-06-30	127.67
1987-09-30	125.05
1987-12-31	120.53
1988-03-31	119.59
1988-06-30	119.44
1988-09-30	117.72
1988-12-31	114.58
1989-03-31	111.79
1989-06-30	109.67
1989-09-30	108.8
1989-12-31	106.59
1990-03-31	101.75
1990-06-30	99.73
1990-09-30	99.55
1990-12-31	94.79
1991-03-31	89.65
1991-06-30	88.08
1991-09-30	87.6
1991-12-31	85.63
1992-03-31	84.62
1992-06-30	81.03
1992-09-30	80.85
1992-12-31	78.19
1993-03-31	77.55
1993-06-30	75.39
1993-09-30	73.16
1993-12-31	72.69
1994-03-31	70.53
1994-06-30	69.84
1994-09-30	69.49
1994-12-31	68.91
1995-03-31	69.18
1995-06-30	68.56
1995-09-30	67.68
1995-12-31	66.44
1996-03-31	66.54
1996-06-30	67.37
1996-09-30	67.29
1996-12-31	66.29
1997-03-31	66.2
1997-06-30	65.23
1997-09-30	65.14
1997-12-31	65.17
1998-03-31	59.24
1998-06-30	61.26
1998-09-30	60.83
1998-12-31	61.98
1999-03-31	61.57
1999-06-30	61.47
1999-09-30	60.54
1999-12-31	59.48
2000-03-31	58.15
2000-06-30	58.14
2000-09-30	56.94
2000-12-31	57.55
2001-03-31	57.41
2001-06-30	56.97
2001-09-30	57.48
2001-12-31	57.5