Quarterly Average 1990 = 100
1975-03-31 96.59
1975-06-30 95.53
1975-09-30 92.6
1975-12-31 92.95
1976-03-31 96.46
1976-06-30 96.42
1976-09-30 100.67
1976-12-31 104.11
1977-03-31 102.8
1977-06-30 103.42
1977-09-30 104.23
1977-12-31 106.46
1978-03-31 108.09
1978-06-30 104.62
1978-09-30 106.1
1978-12-31 108.47
1979-03-31 107.79
1979-06-30 106.83
1979-09-30 107.7
1979-12-31 107.98
1980-03-31 106.3
1980-06-30 108.06
1980-09-30 106.87
1980-12-31 104.3
1981-03-31 102.44
1981-06-30 101.15
1981-09-30 103.28
1981-12-31 100.26
1982-03-31 91.39
1982-06-30 91.99
1982-09-30 90.64
1982-12-31 91.73
1983-03-31 93.37
1983-06-30 91.1
1983-09-30 89.65
1983-12-31 88.78
1984-03-31 89.94
1984-06-30 89.7
1984-09-30 89.05
1984-12-31 90.01
1985-03-31 90.05
1985-06-30 89.65
1985-09-30 91.01
1985-12-31 91.98
1986-03-31 92.49
1986-06-30 94.09
1986-09-30 95.67
1986-12-31 96.91
1987-03-31 98.03
1987-06-30 97.61
1987-09-30 97.1
1987-12-31 98.3
1988-03-31 97.13
1988-06-30 96.05
1988-09-30 95.69
1988-12-31 95.83
1989-03-31 95.36
1989-06-30 95.72
1989-09-30 95.87
1989-12-31 98.84
1990-03-31 100
1990-06-30 100.01
1990-09-30 100.22
1990-12-31 101.18
1991-03-31 99.38
1991-06-30 98.72
1991-09-30 99.93
1991-12-31 101.38
1992-03-31 100.54
1992-06-30 100.95
1992-09-30 105
1992-12-31 105.02
1993-03-31 105.5
1993-06-30 103.25
1993-09-30 100.96
1993-12-31 102.97
1994-03-31 104.47
1994-06-30 105.53
1994-09-30 105.8
1994-12-31 106.8
1995-03-31 111.17
1995-06-30 110.35
1995-09-30 109.25
1995-12-31 109.07
1996-03-31 108.15
1996-06-30 106.46
1996-09-30 106.25
1996-12-31 105.05
1997-03-31 103.78
1997-06-30 102.13
1997-09-30 102.17
1997-12-31 101.99
1998-03-31 101.31
1998-06-30 102.24
1998-09-30 103.9
1998-12-31 103.55
1999-03-31 101.92
1999-06-30 101.14
1999-09-30 100.9
1999-12-31 99.56
2000-03-31 98.57
2000-06-30 99.27
2000-09-30 97.74
2000-12-31 99.27
2001-03-31 98.91
2001-06-30 98.05
2001-09-30 99.09
2001-12-31 98.97