Quarterly Average 1990 = 100
1975-03-31 164.45
1975-06-30 164.7
1975-09-30 168.98
1975-12-31 169
1976-03-31 161.02
1976-06-30 157.38
1976-09-30 157.02
1976-12-31 155.99
1977-03-31 154.66
1977-06-30 153.72
1977-09-30 126.39
1977-12-31 123.83
1978-03-31 122.38
1978-06-30 122.55
1978-09-30 125.5
1978-12-31 129.44
1979-03-31 131.68
1979-06-30 139.35
1979-09-30 135.64
1979-12-31 134.5
1980-03-31 132.28
1980-06-30 127.01
1980-09-30 122.31
1980-12-31 121.22
1981-03-31 119.15
1981-06-30 120.27
1981-09-30 119.72
1981-12-31 117.22
1982-03-31 116.23
1982-06-30 114.78
1982-09-30 114.9
1982-12-31 110.15
1983-03-31 99.59
1983-06-30 96.96
1983-09-30 94.71
1983-12-31 93.81
1984-03-31 95.26
1984-06-30 96.92
1984-09-30 95.95
1984-12-31 96.96
1985-03-31 97.78
1985-06-30 96.14
1985-09-30 93.71
1985-12-31 90.86
1986-03-31 91.08
1986-06-30 90.89
1986-09-30 91.27
1986-12-31 89.97
1987-03-31 87.71
1987-06-30 87.74
1987-09-30 90.4
1987-12-31 92.52
1988-03-31 91.93
1988-06-30 92.99
1988-09-30 92.22
1988-12-31 93.62
1989-03-31 97.43
1989-06-30 96.7
1989-09-30 97.21
1989-12-31 97.31
1990-03-31 97.77
1990-06-30 100.67
1990-09-30 101.45
1990-12-31 100.15
1991-03-31 101.31
1991-06-30 100.43
1991-09-30 99.61
1991-12-31 99.54
1992-03-31 100.03
1992-06-30 100.21
1992-09-30 98.76
1992-12-31 92.56
1993-03-31 93.58
1993-06-30 88.3
1993-09-30 82.87
1993-12-31 82.57
1994-03-31 80.76
1994-06-30 80.97
1994-09-30 81.47
1994-12-31 81.03
1995-03-31 78.51
1995-06-30 80.36
1995-09-30 81.3
1995-12-31 81.51
1996-03-31 82.08
1996-06-30 81.16
1996-09-30 80.57
1996-12-31 79.81
1997-03-31 78.33
1997-06-30 77.7
1997-09-30 76.64
1997-12-31 77.04
1998-03-31 76.43
1998-06-30 76.76
1998-09-30 77.27
1998-12-31 77.63
1999-03-31 76.83
1999-06-30 76.04
1999-09-30 75.73
1999-12-31 75.15
2000-03-31 74.49
2000-06-30 73.89
2000-09-30 73.68
2000-12-31 73.24
2001-03-31 74.47
2001-06-30 73.88
2001-09-30 74.11
2001-12-31 74.21