Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. | Q1 | Q2 | Q3 | Q4 | Annual | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Capacity (percent of 1997 output) |
|||||||||||||||||
1974 | 65.0 | 65.2 | 65.4 | 65.5 | 65.7 | 65.9 | 66.0 | 66.2 | 66.4 | 66.5 | 66.6 | 66.8 | 65.2 | 65.7 | 66.2 | 66.6 | 65.9 |
1975 | 66.9 | 67.0 | 67.1 | 67.3 | 67.4 | 67.5 | 67.6 | 67.7 | 67.9 | 68.0 | 68.1 | 68.2 | 67.0 | 67.4 | 67.7 | 68.1 | 67.6 |
1976 | 68.4 | 68.5 | 68.7 | 68.8 | 69.0 | 69.1 | 69.2 | 69.4 | 69.5 | 69.7 | 69.9 | 70.0 | 68.5 | 69.0 | 69.4 | 69.9 | 69.2 |
1977 | 70.2 | 70.3 | 70.5 | 70.7 | 70.8 | 71.0 | 71.2 | 71.4 | 71.6 | 71.8 | 72.0 | 72.2 | 70.3 | 70.8 | 71.4 | 72.0 | 71.2 |
1978 | 72.4 | 72.6 | 72.8 | 73.0 | 73.2 | 73.4 | 73.6 | 73.8 | 74.0 | 74.2 | 74.4 | 74.6 | 72.6 | 73.2 | 73.8 | 74.4 | 73.5 |
1979 | 74.7 | 74.9 | 75.1 | 75.2 | 75.4 | 75.6 | 75.7 | 75.9 | 76.1 | 76.2 | 76.4 | 76.5 | 74.9 | 75.4 | 75.9 | 76.4 | 75.6 |
1980 | 76.6 | 76.8 | 76.9 | 77.1 | 77.2 | 77.4 | 77.5 | 77.6 | 77.8 | 77.9 | 78.1 | 78.3 | 76.8 | 77.2 | 77.6 | 78.1 | 77.4 |
1981 | 78.4 | 78.6 | 78.8 | 78.9 | 79.1 | 79.3 | 79.5 | 79.7 | 79.9 | 80.1 | 80.3 | 80.5 | 78.6 | 79.1 | 79.7 | 80.3 | 79.4 |
1982 | 80.7 | 80.8 | 81.0 | 81.2 | 81.4 | 81.5 | 81.7 | 81.8 | 82.0 | 82.1 | 82.2 | 82.3 | 80.8 | 81.4 | 81.8 | 82.2 | 81.6 |
1983 | 82.3 | 82.4 | 82.5 | 82.5 | 82.6 | 82.6 | 82.6 | 82.7 | 82.7 | 82.8 | 82.9 | 82.9 | 82.4 | 82.6 | 82.7 | 82.9 | 82.6 |
1984 | 83.0 | 83.1 | 83.2 | 83.3 | 83.5 | 83.6 | 83.7 | 83.9 | 84.1 | 84.2 | 84.4 | 84.6 | 83.1 | 83.5 | 83.9 | 84.4 | 83.7 |
1985 | 84.8 | 84.9 | 85.1 | 85.3 | 85.5 | 85.7 | 85.9 | 86.0 | 86.2 | 86.4 | 86.5 | 86.7 | 84.9 | 85.5 | 86.0 | 86.5 | 85.7 |
1986 | 86.8 | 86.9 | 87.0 | 87.1 | 87.2 | 87.4 | 87.5 | 87.6 | 87.7 | 87.8 | 87.9 | 88.1 | 86.9 | 87.2 | 87.6 | 87.9 | 87.4 |
1987 | 88.2 | 88.3 | 88.5 | 88.6 | 88.8 | 89.0 | 89.1 | 89.2 | 89.4 | 89.5 | 89.6 | 89.7 | 88.3 | 88.8 | 89.2 | 89.6 | 89.0 |
1988 | 89.8 | 89.9 | 89.9 | 90.0 | 90.1 | 90.1 | 90.2 | 90.3 | 90.3 | 90.4 | 90.5 | 90.6 | 89.9 | 90.1 | 90.3 | 90.5 | 90.2 |
1989 | 90.8 | 90.9 | 91.0 | 91.2 | 91.4 | 91.6 | 91.7 | 91.9 | 92.1 | 92.3 | 92.5 | 92.7 | 90.9 | 91.4 | 91.9 | 92.5 | 91.7 |
1990 | 92.9 | 93.1 | 93.3 | 93.5 | 93.7 | 93.9 | 94.0 | 94.2 | 94.4 | 94.5 | 94.7 | 94.8 | 93.1 | 93.7 | 94.2 | 94.7 | 93.9 |
1991 | 94.9 | 95.1 | 95.2 | 95.3 | 95.5 | 95.6 | 95.7 | 95.9 | 96.0 | 96.1 | 96.3 | 96.4 | 95.1 | 95.5 | 95.9 | 96.3 | 95.7 |
1992 | 96.5 | 96.7 | 96.9 | 97.1 | 97.3 | 97.5 | 97.7 | 97.9 | 98.0 | 98.2 | 98.4 | 98.6 | 96.7 | 97.3 | 97.9 | 98.4 | 97.6 |
1993 | 98.7 | 98.9 | 99.0 | 99.2 | 99.3 | 99.5 | 99.6 | 99.8 | 99.9 | 100.1 | 100.3 | 100.5 | 98.9 | 99.3 | 99.8 | 100.3 | 99.6 |
1994 | 100.7 | 100.9 | 101.1 | 101.4 | 101.7 | 102.0 | 102.3 | 102.6 | 102.9 | 103.3 | 103.6 | 104.0 | 100.9 | 101.7 | 102.6 | 103.6 | 102.2 |
1995 | 104.4 | 104.8 | 105.2 | 105.7 | 106.1 | 106.5 | 107.0 | 107.5 | 108.0 | 108.4 | 108.9 | 109.4 | 104.8 | 106.1 | 107.5 | 108.9 | 106.8 |
1996 | 109.9 | 110.4 | 111.0 | 111.5 | 112.0 | 112.5 | 113.0 | 113.5 | 114.0 | 114.5 | 115.0 | 115.5 | 110.5 | 112.0 | 113.5 | 115.0 | 112.7 |
1997 | 116.1 | 116.6 | 117.2 | 117.7 | 118.3 | 118.9 | 119.6 | 120.2 | 120.9 | 121.7 | 122.4 | 123.1 | 116.6 | 118.3 | 120.3 | 122.4 | 119.4 |
1998 | 123.9 | 124.6 | 125.4 | 126.1 | 126.8 | 127.6 | 128.2 | 128.9 | 129.5 | 130.1 | 130.6 | 131.2 | 124.6 | 126.8 | 128.8 | 130.6 | 127.7 |
1999 | 131.7 | 132.3 | 132.8 | 133.3 | 133.8 | 134.4 | 134.9 | 135.4 | 135.9 | 136.4 | 136.9 | 137.4 | 132.3 | 133.8 | 135.4 | 136.9 | 134.6 |
2000 | 138.0 | 138.5 | 139.0 | 139.5 | 140.0 | 140.5 | 141.0 | 141.4 | 141.9 | 142.3 | 142.8 | 143.2 | 138.5 | 140.0 | 141.4 | 142.7 | 140.7 |
2001 | 143.6 | 143.9 | 144.3 | 144.6 | 145.0 | 145.3 | 145.6 | 145.9 | 146.1 | 146.4 | 146.6 | 146.8 | 143.9 | 145.0 | 145.9 | 146.6 | 145.3 |
2002 | 147.0 | 147.2 | 147.3 | 147.4 | 147.5 | 147.5 | 147.5 | 147.5 | 147.4 | 147.4 | 147.3 | 147.2 | 147.2 | 147.5 | 147.5 | 147.3 | 147.4 |
2003 | 147.1 | 147.0 | 146.9 | 146.9 | 146.8 | 146.8 | 146.7 | 146.8 | 146.8 | 146.9 | 146.9 | 147.0 | 147.0 | 146.8 | 146.8 | 146.9 | 146.9 |
2004 | 147.2 | 147.3 | 147.5 | 147.6 | 147.8 | 147.9 | 148.1 | 148.2 | 148.4 | 148.5 | 148.7 | 147.3 | 147.8 | 148.2 | |||
Utilization (percent) |
|||||||||||||||||
1974 | 87.3 | 86.8 | 86.5 | 86.1 | 86.4 | 86.1 | 85.9 | 84.9 | 84.8 | 84.3 | 81.4 | 78.3 | 86.8 | 86.2 | 85.2 | 81.3 | 84.9 |
1975 | 77.2 | 75.1 | 74.2 | 74.1 | 73.9 | 74.2 | 74.9 | 75.5 | 76.3 | 76.4 | 76.5 | 77.3 | 75.5 | 74.0 | 75.5 | 76.7 | 75.5 |
1976 | 78.2 | 78.8 | 78.6 | 79.1 | 79.2 | 79.0 | 79.3 | 79.7 | 79.7 | 79.6 | 80.7 | 81.3 | 78.6 | 79.1 | 79.6 | 80.5 | 79.4 |
1977 | 80.7 | 81.7 | 82.5 | 83.0 | 83.5 | 83.8 | 83.8 | 83.7 | 83.9 | 83.9 | 83.8 | 83.6 | 81.6 | 83.4 | 83.8 | 83.8 | 83.2 |
1978 | 82.2 | 82.4 | 83.7 | 85.1 | 85.2 | 85.5 | 85.2 | 85.3 | 85.3 | 85.9 | 86.3 | 86.6 | 82.7 | 85.2 | 85.3 | 86.3 | 84.9 |
1979 | 85.8 | 86.1 | 86.2 | 85.1 | 85.5 | 85.3 | 85.0 | 84.2 | 84.2 | 84.4 | 84.2 | 84.1 | 86.0 | 85.3 | 84.5 | 84.2 | 85.0 |
1980 | 84.3 | 84.2 | 83.8 | 81.9 | 79.7 | 78.6 | 77.9 | 78.0 | 79.2 | 80.0 | 81.1 | 81.4 | 84.1 | 80.1 | 78.4 | 80.8 | 80.9 |
1981 | 80.8 | 80.3 | 80.5 | 80.0 | 80.3 | 80.5 | 80.9 | 80.7 | 80.0 | 79.2 | 78.2 | 77.2 | 80.5 | 80.3 | 80.5 | 78.2 | 79.9 |
1982 | 75.5 | 76.8 | 76.0 | 75.2 | 74.6 | 74.1 | 73.7 | 73.0 | 72.6 | 71.9 | 71.5 | 70.8 | 76.1 | 74.6 | 73.1 | 71.4 | 73.8 |
1983 | 72.1 | 71.6 | 72.1 | 73.0 | 73.5 | 73.9 | 75.0 | 75.8 | 76.9 | 77.5 | 77.7 | 78.0 | 71.9 | 73.4 | 75.9 | 77.7 | 74.7 |
1984 | 79.5 | 79.8 | 80.1 | 80.4 | 80.7 | 80.9 | 81.0 | 80.9 | 80.6 | 80.4 | 80.5 | 80.4 | 79.8 | 80.7 | 80.8 | 80.4 | 80.4 |
1985 | 80.0 | 80.2 | 80.2 | 79.9 | 79.7 | 79.6 | 78.9 | 79.1 | 79.3 | 78.9 | 79.0 | 79.7 | 80.1 | 79.7 | 79.1 | 79.2 | 79.5 |
1986 | 80.0 | 79.2 | 78.6 | 78.5 | 78.6 | 78.2 | 78.6 | 78.4 | 78.4 | 78.7 | 78.9 | 79.5 | 79.3 | 78.5 | 78.5 | 79.0 | 78.8 |
1987 | 79.1 | 80.0 | 80.0 | 80.3 | 80.7 | 81.0 | 81.3 | 81.8 | 81.8 | 82.9 | 83.3 | 83.5 | 79.7 | 80.7 | 81.6 | 83.2 | 81.3 |
1988 | 83.5 | 83.7 | 83.9 | 84.2 | 84.1 | 84.2 | 84.3 | 84.7 | 84.4 | 84.8 | 84.8 | 85.1 | 83.7 | 84.2 | 84.5 | 84.9 | 84.3 |
1989 | 85.1 | 84.6 | 84.7 | 84.5 | 83.8 | 83.6 | 82.7 | 83.3 | 82.9 | 82.7 | 82.7 | 83.1 | 84.8 | 84.0 | 82.9 | 82.8 | 83.6 |
1990 | 82.4 | 83.0 | 83.2 | 83.0 | 82.9 | 83.0 | 82.7 | 82.7 | 82.8 | 82.0 | 80.9 | 80.2 | 82.9 | 82.9 | 82.7 | 81.1 | 82.4 |
1991 | 79.7 | 79.1 | 78.6 | 78.6 | 79.4 | 80.0 | 79.9 | 79.9 | 80.5 | 80.2 | 80.0 | 79.6 | 79.2 | 79.4 | 80.1 | 79.9 | 79.6 |
1992 | 79.1 | 79.5 | 80.0 | 80.4 | 80.6 | 80.4 | 80.8 | 80.3 | 80.3 | 80.7 | 80.9 | 80.8 | 79.5 | 80.4 | 80.5 | 80.8 | 80.3 |
1993 | 81.1 | 81.3 | 81.1 | 81.3 | 80.9 | 80.9 | 81.1 | 81.0 | 81.2 | 81.7 | 81.9 | 82.2 | 81.2 | 81.0 | 81.1 | 81.9 | 81.3 |
1994 | 82.4 | 82.2 | 82.8 | 83.0 | 83.3 | 83.6 | 83.6 | 83.7 | 83.6 | 84.1 | 84.3 | 84.9 | 82.5 | 83.3 | 83.6 | 84.4 | 83.5 |
1995 | 84.8 | 84.5 | 84.3 | 83.9 | 83.7 | 83.6 | 82.9 | 83.7 | 83.7 | 83.2 | 83.0 | 83.0 | 84.5 | 83.7 | 83.4 | 83.0 | 83.7 |
1996 | 81.9 | 82.7 | 82.1 | 82.5 | 82.7 | 83.1 | 82.6 | 82.8 | 82.9 | 82.6 | 83.0 | 83.2 | 82.2 | 82.8 | 82.8 | 82.9 | 82.7 |
1997 | 83.1 | 83.7 | 83.7 | 83.5 | 83.4 | 83.4 | 83.5 | 83.8 | 84.1 | 84.3 | 84.3 | 84.1 | 83.5 | 83.4 | 83.8 | 84.2 | 83.7 |
1998 | 84.0 | 83.6 | 83.3 | 83.4 | 83.3 | 82.5 | 81.9 | 83.1 | 82.4 | 82.7 | 82.1 | 82.0 | 83.7 | 83.1 | 82.5 | 82.3 | 82.9 |
1999 | 82.1 | 82.1 | 82.1 | 81.9 | 82.2 | 81.9 | 82.1 | 82.3 | 81.7 | 82.3 | 82.4 | 82.9 | 82.1 | 82.0 | 82.0 | 82.5 | 82.2 |
2000 | 82.5 | 82.5 | 82.7 | 82.9 | 83.2 | 82.9 | 82.2 | 81.7 | 81.7 | 81.1 | 80.7 | 80.3 | 82.6 | 83.0 | 81.9 | 80.7 | 82.0 |
2001 | 79.3 | 78.6 | 78.1 | 77.8 | 77.2 | 76.6 | 76.1 | 75.9 | 75.4 | 75.0 | 74.5 | 74.4 | 78.7 | 77.2 | 75.8 | 74.6 | 76.6 |
2002 | 74.8 | 74.6 | 74.9 | 75.1 | 75.3 | 75.8 | 75.7 | 75.7 | 75.7 | 75.4 | 75.5 | 75.2 | 74.7 | 75.4 | 75.7 | 75.4 | 75.3 |
2003 | 75.4 | 75.5 | 75.2 | 74.6 | 74.7 | 74.9 | 75.4 | 75.3 | 75.8 | 76.0 | 76.7 | 76.8 | 75.4 | 74.7 | 75.5 | 76.5 | 75.5 |
2004 | 76.9 | 77.7 | 77.4 | 77.7 | 78.2 | 77.8 | 78.3 | 78.3 | 78.1 | 78.6 | 78.7 | 77.3 | 77.9 | 78.2 |
Note: Estimates from September 2004 through November 2004 are subject to further revision in the upcoming monthly releases.