Quarterly Average 1990 = 100
1975-03-31 510
1975-06-30 510.65
1975-09-30 500.55
1975-12-31 479.19
1976-03-31 484.87
1976-06-30 486.5
1976-09-30 481.28
1976-12-31 472.26
1977-03-31 470.99
1977-06-30 470.6
1977-09-30 472.73
1977-12-31 468.52
1978-03-31 445.07
1978-06-30 431.95
1978-09-30 420.44
1978-12-31 407.95
1979-03-31 407.58
1979-06-30 406.42
1979-09-30 396.36
1979-12-31 385.25
1980-03-31 369.56
1980-06-30 343.14
1980-09-30 334.15
1980-12-31 337.75
1981-03-31 330.11
1981-06-30 323.9
1981-09-30 323.3
1981-12-31 325.04
1982-03-31 318.12
1982-06-30 306.82
1982-09-30 297.66
1982-12-31 297.56
1983-03-31 252.63
1983-06-30 256.98
1983-09-30 256.08
1983-12-31 241.64
1984-03-31 228.64
1984-06-30 228.29
1984-09-30 237.49
1984-12-31 209.7
1985-03-31 207.73
1985-06-30 196.46
1985-09-30 187.84
1985-12-31 154.54
1986-03-31 147.56
1986-06-30 145.4
1986-09-30 142.64
1986-12-31 138.11
1987-03-31 131.52
1987-06-30 129.01
1987-09-30 126.36
1987-12-31 123.44
1988-03-31 120.93
1988-06-30 119.87
1988-09-30 118.41
1988-12-31 115.74
1989-03-31 113.32
1989-06-30 110.86
1989-09-30 109.71
1989-12-31 107.19
1990-03-31 104.05
1990-06-30 100.09
1990-09-30 99.46
1990-12-31 96.42
1991-03-31 92.12
1991-06-30 88.73
1991-09-30 87.96
1991-12-31 86.66
1992-03-31 84.94
1992-06-30 82.43
1992-09-30 80.65
1992-12-31 79.21
1993-03-31 77.9
1993-06-30 76.27
1993-09-30 74.37
1993-12-31 73.05
1994-03-31 71.86
1994-06-30 70.22
1994-09-30 69.95
1994-12-31 69.14
1995-03-31 69.01
1995-06-30 68.75
1995-09-30 68.11
1995-12-31 66.92
1996-03-31 66.22
1996-06-30 67.2
1996-09-30 67.42
1996-12-31 67.23
1997-03-31 66.66
1997-06-30 65.39
1997-09-30 65.11
1997-12-31 65.51
1998-03-31 63.74
1998-06-30 60.04
1998-09-30 61.58
1998-12-31 61.66
1999-03-31 62.69
1999-06-30 61.69
1999-09-30 61.15
1999-12-31 60.13
2000-03-31 58.98
2000-06-30 57.91
2000-09-30 57.51
2000-12-31 56.77
2001-03-31 57.6
2001-06-30 57.19
2001-09-30 57.37
2001-12-31 57.44