Month Average 1990 = 100 1975-01-31 522.59 1975-02-28 515.48 1975-03-31 510 1975-04-30 511.81 1975-05-31 510.28 1975-06-30 509.82 1975-07-31 507.35 1975-08-31 498.31 1975-09-30 495.48 1975-10-31 485.13 1975-11-30 477.09 1975-12-31 474.69 1976-01-31 477.54 1976-02-29 487.34 1976-03-31 489.42 1976-04-30 486.78 1976-05-31 485.35 1976-06-30 487.28 1976-07-31 484.81 1976-08-31 482.02 1976-09-30 477.04 1976-10-31 472.42 1976-11-30 473.06 1976-12-31 471.26 1977-01-31 471.16 1977-02-28 470.91 1977-03-31 470.91 1977-04-30 470.26 1977-05-31 470.89 1977-06-30 470.63 1977-07-31 470.42 1977-08-31 473.35 1977-09-30 474.33 1977-10-31 472.86 1977-11-30 467.45 1977-12-31 465.15 1978-01-31 454.28 1978-02-28 447.21 1978-03-31 433.82 1978-04-30 429.79 1978-05-31 433.19 1978-06-30 432.74 1978-07-31 429.86 1978-08-31 419.22 1978-09-30 412.3 1978-10-31 406.78 1978-11-30 407.53 1978-12-31 409.79 1979-01-31 408.65 1979-02-28 407.7 1979-03-31 406.41 1979-04-30 406.56 1979-05-31 407.14 1979-06-30 405.56 1979-07-31 399.42 1979-08-31 396.96 1979-09-30 392.33 1979-10-31 389.96 1979-11-30 388.07 1979-12-31 376.28 1980-01-31 369.86 1980-02-29 366.96 1980-03-31 371.85 1980-04-30 359.32 1980-05-31 338.53 1980-06-30 332.11 1980-07-31 331.3 1980-08-31 335.2 1980-09-30 336.19 1980-10-31 340.51 1980-11-30 338.85 1980-12-31 333.68 1981-01-31 334.86 1981-02-28 327.93 1981-03-31 327.56 1981-04-30 326.34 1981-05-31 323.7 1981-06-30 321.85 1981-07-31 322.72 1981-08-31 321.78 1981-09-30 325.26 1981-10-31 326.48 1981-11-30 325.61 1981-12-31 322.97 1982-01-31 319.31 1982-02-28 317.09 1982-03-31 317.97 1982-04-30 314.31 1982-05-31 307.16 1982-06-30 299.73 1982-07-31 297.8 1982-08-31 297.58 1982-09-30 297.59 1982-10-31 298.93 1982-11-30 298.83 1982-12-31 294.86 1983-01-31 256.5 1983-02-28 250.33 1983-03-31 251.25 1983-04-30 254.08 1983-05-31 255.26 1983-06-30 261.06 1983-07-31 263.77 1983-08-31 256.75 1983-09-30 248.07 1983-10-31 243.51 1983-11-30 241.19 1983-12-31 240.18 1984-01-31 239.17 1984-02-29 227.19 1984-03-31 219.96 1984-04-30 223.04 1984-05-31 230.66 1984-06-30 230.66 1984-07-31 238.94 1984-08-31 241.59 1984-09-30 231.38 1984-10-31 209.82 1984-11-30 209.52 1984-12-31 209.78 1985-01-31 210.86 1985-02-28 210.76 1985-03-31 201.57 1985-04-30 198.72 1985-05-31 195.83 1985-06-30 194.84 1985-07-31 192.33 1985-08-31 187.48 1985-09-30 183.29 1985-10-31 161.75 1985-11-30 150.76 1985-12-31 150.21 1986-01-31 148.44 1986-02-28 147.6 1986-03-31 146.5 1986-04-30 145.44 1986-05-31 145.87 1986-06-30 144.92 1986-07-31 143.22 1986-08-31 142.66 1986-09-30 142 1986-10-31 141.6 1986-11-30 137.46 1986-12-31 134.9 1987-01-31 132.37 1987-02-28 131.32 1987-03-31 130.91 1987-04-30 130.02 1987-05-31 128.76 1987-06-30 128.31 1987-07-31 127.29 1987-08-31 126.29 1987-09-30 125.46 1987-10-31 124.47 1987-11-30 123.26 1987-12-31 122.54 1988-01-31 121.47 1988-02-29 120.93 1988-03-31 120.46 1988-04-30 120.19 1988-05-31 119.79 1988-06-30 119.66 1988-07-31 118.99 1988-08-31 118.41 1988-09-30 117.86 1988-10-31 116.87 1988-11-30 115.59 1988-12-31 114.71 1989-01-31 114.04 1989-02-28 113.38 1989-03-31 112.54 1989-04-30 111.45 1989-05-31 111.03 1989-06-30 110.17 1989-07-31 109.9 1989-08-31 109.78 1989-09-30 109.46 1989-10-31 108.05 1989-11-30 107.14 1989-12-31 106.27 1990-01-31 105.22 1990-02-28 104.01 1990-03-31 102.9 1990-04-30 101.12 1990-05-31 99.59 1990-06-30 99.65 1990-07-31 99.38 1990-08-31 99.29 1990-09-30 99.72 1990-10-31 97.61 1990-11-30 96.29 1990-12-31 95.13 1991-01-31 93.21 1991-02-28 92.24 1991-03-31 90.8 1991-04-30 89.21 1991-05-31 88.56 1991-06-30 88.41 1991-07-31 88.29 1991-08-31 87.87 1991-09-30 87.7 1991-10-31 87.25 1991-11-30 86.59 1991-12-31 86.04 1992-01-31 85.16 1992-02-29 84.92 1992-03-31 84.73 1992-04-30 83.83 1992-05-31 82.63 1992-06-30 80.99 1992-07-31 80.71 1992-08-31 80.57 1992-09-30 80.66 1992-10-31 80.01 1992-11-30 79.09 1992-12-31 78.5 1993-01-31 78.08 1993-02-28 78.14 1993-03-31 77.54 1993-04-30 76.89 1993-05-31 76.38 1993-06-30 75.6 1993-07-31 75.2 1993-08-31 74.29 1993-09-30 73.62 1993-10-31 72.95 1993-11-30 73.25 1993-12-31 72.94 1994-01-31 72.28 1994-02-28 71.74 1994-03-31 71.6 1994-04-30 70.75 1994-05-31 70.36 1994-06-30 69.63 1994-07-31 70.02 1994-08-31 70.17 1994-09-30 69.68 1994-10-31 69.39 1994-11-30 69.09 1994-12-31 68.94 1995-01-31 69.06 1995-02-28 69 1995-03-31 68.97 1995-04-30 69.1 1995-05-31 68.53 1995-06-30 68.68 1995-07-31 68.37 1995-08-31 68.14 1995-09-30 67.81 1995-10-31 67.37 1995-11-30 66.88 1995-12-31 66.44 1996-01-31 66.35 1996-02-29 65.98 1996-03-31 66.34 1996-04-30 66.95 1996-05-31 67.25 1996-06-30 67.41 1996-07-31 67.7 1996-08-31 67.29 1996-09-30 67.25 1996-10-31 67.67 1996-11-30 67.32 1996-12-31 66.63 1997-01-31 66.83 1997-02-28 66.68 1997-03-31 66.45 1997-04-30 65.89 1997-05-31 65.14 1997-06-30 65.11 1997-07-31 65.08 1997-08-31 65.12 1997-09-30 65.14 1997-10-31 65.37 1997-11-30 65.74 1997-12-31 65.43 1998-01-31 65.01 1998-02-28 64.96 1998-03-31 61.4 1998-04-30 59.07 1998-05-31 59.9 1998-06-30 61.05 1998-07-31 62.22 1998-08-31 61.8 1998-09-30 60.7 1998-10-31 60.86 1998-11-30 62.06 1998-12-31 62.1 1999-01-31 62.85 1999-02-28 62.81 1999-03-31 62.45 1999-04-30 61.71 1999-05-31 61.73 1999-06-30 61.63 1999-07-31 61.49 1999-08-31 61.23 1999-09-30 60.72 1999-10-31 60.43 1999-11-30 60.18 1999-12-31 59.76 2000-01-31 59.46 2000-02-29 58.95 2000-03-31 58.58 2000-04-30 58.05 2000-05-31 57.6 2000-06-30 58.1 2000-07-31 57.99 2000-08-31 57.54 2000-09-30 57 2000-10-31 56.63 2000-11-30 56.66 2000-12-31 57.06 2001-01-31 57.67 2001-02-28 57.55 2001-03-31 57.58 2001-04-30 57.45 2001-05-31 57.13 2001-06-30 57 2001-07-31 57.14 2001-08-31 57.49 2001-09-30 57.5 2001-10-31 57.51 2001-11-30 57.33 2001-12-31 57.49