Quarterly Average 1990 = 100
1975-03-31 76.68
1975-06-30 76.19
1975-09-30 74.67
1975-12-31 75.45
1976-03-31 76.64
1976-06-30 76.9
1976-09-30 80.76
1976-12-31 82.81
1977-03-31 82.27
1977-06-30 81.98
1977-09-30 82.65
1977-12-31 83.54
1978-03-31 85.82
1978-06-30 83.54
1978-09-30 83.71
1978-12-31 86.37
1979-03-31 86.25
1979-06-30 84.49
1979-09-30 85.64
1979-12-31 86.97
1980-03-31 84.44
1980-06-30 85.84
1980-09-30 85.65
1980-12-31 83.46
1981-03-31 81.91
1981-06-30 80.2
1981-09-30 82.1
1981-12-31 84.61
1982-03-31 84.6
1982-06-30 86.24
1982-09-30 87.29
1982-12-31 89.11
1983-03-31 89.24
1983-06-30 88.27
1983-09-30 88.19
1983-12-31 87.28
1984-03-31 88.49
1984-06-30 87.55
1984-09-30 86.36
1984-12-31 86.08
1985-03-31 86.53
1985-06-30 86.47
1985-09-30 88.61
1985-12-31 90.73
1986-03-31 91.25
1986-06-30 92.55
1986-09-30 95.55
1986-12-31 97.28
1987-03-31 97.85
1987-06-30 97.77
1987-09-30 97.48
1987-12-31 99.78
1988-03-31 98.48
1988-06-30 96.82
1988-09-30 96.43
1988-12-31 96.54
1989-03-31 95.7
1989-06-30 96.47
1989-09-30 96.82
1989-12-31 100.35
1990-03-31 100.11
1990-06-30 99.39
1990-09-30 99.81
1990-12-31 101.04
1991-03-31 98.66
1991-06-30 97.94
1991-09-30 99.28
1991-12-31 100.98
1992-03-31 99.97
1992-06-30 100.4
1992-09-30 104.89
1992-12-31 104.57
1993-03-31 105.42
1993-06-30 103
1993-09-30 106.09
1993-12-31 104.3
1994-03-31 104.15
1994-06-30 105.45
1994-09-30 105.83
1994-12-31 106.56
1995-03-31 111.19
1995-06-30 110.24
1995-09-30 109.33
1995-12-31 109.24
1996-03-31 108.32
1996-06-30 106.52
1996-09-30 106.33
1996-12-31 104.92
1997-03-31 103.46
1997-06-30 101.55
1997-09-30 101.56
1997-12-31 101.2
1998-03-31 100.49
1998-06-30 101.52
1998-09-30 103.47
1998-12-31 103.13
1999-03-31 101.22
1999-06-30 100.32
1999-09-30 100.05
1999-12-31 98.49
2000-03-31 97.34
2000-06-30 98.16
2000-09-30 96.43
2000-12-31 98.22
2001-03-31 97.87
2001-06-30 96.81
2001-09-30 98.06
2001-12-31 97.9