Quarterly Average 1990 = 100
1975-03-31 96.95
1975-06-30 95.78
1975-09-30 94.02
1975-12-31 93.18
1976-03-31 94.48
1976-06-30 97.09
1976-09-30 97.93
1976-12-31 102.71
1977-03-31 102.57
1977-06-30 103.65
1977-09-30 104.48
1977-12-31 104.27
1978-03-31 107.51
1978-06-30 106.58
1978-09-30 105
1978-12-31 108.06
1979-03-31 108.58
1979-06-30 106.52
1979-09-30 106.96
1979-12-31 108.03
1980-03-31 107.35
1980-06-30 107.67
1980-09-30 107.69
1980-12-31 105.09
1981-03-31 102.59
1981-06-30 101.85
1981-09-30 101.73
1981-12-31 102.28
1982-03-31 96.94
1982-06-30 92.01
1982-09-30 91.72
1982-12-31 91.37
1983-03-31 92.65
1983-06-30 91.69
1983-09-30 90.19
1983-12-31 89.32
1984-03-31 89.18
1984-06-30 89.68
1984-09-30 89.82
1984-12-31 89.68
1985-03-31 89.88
1985-06-30 89.67
1985-09-30 90.36
1985-12-31 91.5
1986-03-31 92.84
1986-06-30 93.94
1986-09-30 94.83
1986-12-31 96.17
1987-03-31 98.16
1987-06-30 97.63
1987-09-30 97.32
1987-12-31 97.54
1988-03-31 97.46
1988-06-30 96.68
1988-09-30 95.65
1988-12-31 96.09
1989-03-31 95.24
1989-06-30 95.29
1989-09-30 95.57
1989-12-31 97.14
1990-03-31 99.14
1990-06-30 100.13
1990-09-30 100.09
1990-12-31 100.67
1991-03-31 100.85
1991-06-30 99.15
1991-09-30 99.27
1991-12-31 100.35
1992-03-31 100.53
1992-06-30 100.32
1992-09-30 102.18
1992-12-31 104.65
1993-03-31 105.03
1993-06-30 104.43
1993-09-30 102.07
1993-12-31 101.5
1994-03-31 103.54
1994-06-30 104.6
1994-09-30 105.97
1994-12-31 106.27
1995-03-31 108.4
1995-06-30 110.18
1995-09-30 109.08
1995-12-31 109.48
1996-03-31 108.42
1996-06-30 106.85
1996-09-30 106.95
1996-12-31 105.63
1997-03-31 103.92
1997-06-30 102.98
1997-09-30 101.51
1997-12-31 102.2
1998-03-31 101.67
1998-06-30 102.29
1998-09-30 103.01
1998-12-31 103.72
1999-03-31 102.63
1999-06-30 101.52
1999-09-30 101.1
1999-12-31 100.34
2000-03-31 99.39
2000-06-30 98.57
2000-09-30 98.27
2000-12-31 97.65
2001-03-31 99.35
2001-06-30 98.53
2001-09-30 98.86
2001-12-31 98.99