| Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. | Q1 | Q2 | Q3 | Q4 | Annual | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Capacity (percent of 1997 output) |
|||||||||||||||||
| 1973 | 58.7 | 58.9 | 59.1 | 59.2 | 59.4 | 59.6 | 59.8 | 60.0 | 60.2 | 60.4 | 60.6 | 60.8 | 58.9 | 59.4 | 60.0 | 60.6 | 59.7 |
| 1974 | 61.0 | 61.2 | 61.4 | 61.6 | 61.8 | 61.9 | 62.1 | 62.3 | 62.4 | 62.5 | 62.7 | 62.8 | 61.2 | 61.8 | 62.3 | 62.7 | 62.0 |
| 1975 | 62.9 | 63.0 | 63.2 | 63.3 | 63.4 | 63.5 | 63.6 | 63.7 | 63.8 | 64.0 | 64.1 | 64.2 | 63.0 | 63.4 | 63.7 | 64.1 | 63.6 |
| 1976 | 64.4 | 64.5 | 64.6 | 64.8 | 64.9 | 65.1 | 65.3 | 65.4 | 65.6 | 65.7 | 65.9 | 66.0 | 64.5 | 64.9 | 65.4 | 65.9 | 65.2 |
| 1977 | 66.2 | 66.4 | 66.5 | 66.7 | 66.8 | 67.0 | 67.2 | 67.3 | 67.5 | 67.7 | 67.9 | 68.1 | 66.4 | 66.8 | 67.3 | 67.9 | 67.1 |
| 1978 | 68.2 | 68.4 | 68.6 | 68.8 | 69.0 | 69.2 | 69.4 | 69.6 | 69.7 | 69.9 | 70.2 | 70.4 | 68.4 | 69.0 | 69.6 | 70.2 | 69.3 |
| 1979 | 70.6 | 70.8 | 71.0 | 71.2 | 71.4 | 71.6 | 71.7 | 71.9 | 72.1 | 72.3 | 72.5 | 72.7 | 70.8 | 71.4 | 71.9 | 72.5 | 71.6 |
| 1980 | 72.8 | 73.0 | 73.2 | 73.3 | 73.5 | 73.7 | 73.9 | 74.0 | 74.2 | 74.4 | 74.6 | 74.8 | 73.0 | 73.5 | 74.0 | 74.6 | 73.8 |
| 1981 | 75.0 | 75.2 | 75.4 | 75.6 | 75.8 | 76.0 | 76.2 | 76.4 | 76.5 | 76.7 | 76.9 | 77.1 | 75.2 | 75.8 | 76.4 | 76.9 | 76.1 |
| 1982 | 77.2 | 77.4 | 77.6 | 77.7 | 77.9 | 78.0 | 78.2 | 78.3 | 78.4 | 78.5 | 78.6 | 78.7 | 77.4 | 77.9 | 78.3 | 78.6 | 78.0 |
| 1983 | 78.7 | 78.8 | 78.9 | 78.9 | 79.0 | 79.0 | 79.0 | 79.1 | 79.2 | 79.2 | 79.3 | 79.4 | 78.8 | 79.0 | 79.1 | 79.3 | 79.0 |
| 1984 | 79.5 | 79.7 | 79.8 | 80.0 | 80.1 | 80.3 | 80.5 | 80.7 | 80.9 | 81.1 | 81.4 | 81.6 | 79.7 | 80.1 | 80.7 | 81.4 | 80.5 |
| 1985 | 81.8 | 82.0 | 82.3 | 82.5 | 82.7 | 82.9 | 83.1 | 83.3 | 83.5 | 83.6 | 83.8 | 83.9 | 82.0 | 82.7 | 83.3 | 83.8 | 82.9 |
| 1986 | 84.0 | 84.2 | 84.3 | 84.4 | 84.5 | 84.6 | 84.7 | 84.9 | 85.0 | 85.1 | 85.3 | 85.4 | 84.2 | 84.5 | 84.9 | 85.3 | 84.7 |
| 1987 | 85.6 | 85.8 | 85.9 | 86.1 | 86.3 | 86.5 | 86.6 | 86.8 | 86.9 | 87.1 | 87.2 | 87.3 | 85.8 | 86.3 | 86.8 | 87.2 | 86.5 |
| 1988 | 87.4 | 87.4 | 87.5 | 87.6 | 87.6 | 87.7 | 87.7 | 87.8 | 87.9 | 88.0 | 88.1 | 88.2 | 87.4 | 87.6 | 87.8 | 88.1 | 87.7 |
| 1989 | 88.4 | 88.5 | 88.7 | 88.9 | 89.1 | 89.3 | 89.5 | 89.7 | 89.9 | 90.1 | 90.3 | 90.5 | 88.5 | 89.1 | 89.7 | 90.3 | 89.4 |
| 1990 | 90.7 | 90.9 | 91.1 | 91.3 | 91.5 | 91.7 | 91.8 | 92.0 | 92.2 | 92.4 | 92.6 | 92.7 | 90.9 | 91.5 | 92.0 | 92.6 | 91.7 |
| 1991 | 92.9 | 93.1 | 93.2 | 93.4 | 93.6 | 93.7 | 93.9 | 94.0 | 94.2 | 94.3 | 94.5 | 94.7 | 93.1 | 93.6 | 94.0 | 94.5 | 93.8 |
| 1992 | 94.8 | 95.0 | 95.2 | 95.3 | 95.5 | 95.7 | 95.9 | 96.1 | 96.3 | 96.5 | 96.7 | 96.9 | 95.0 | 95.5 | 96.1 | 96.7 | 95.8 |
| 1993 | 97.1 | 97.3 | 97.5 | 97.7 | 97.8 | 98.0 | 98.2 | 98.4 | 98.6 | 98.8 | 99.1 | 99.3 | 97.3 | 97.8 | 98.4 | 99.1 | 98.2 |
| 1994 | 99.5 | 99.8 | 100.0 | 100.3 | 100.6 | 100.9 | 101.3 | 101.6 | 102.0 | 102.4 | 102.8 | 103.2 | 99.8 | 100.6 | 101.6 | 102.8 | 101.2 |
| 1995 | 103.6 | 104.0 | 104.5 | 105.0 | 105.5 | 106.0 | 106.5 | 107.1 | 107.6 | 108.2 | 108.8 | 109.4 | 104.0 | 105.5 | 107.1 | 108.8 | 106.4 |
| 1996 | 110.1 | 110.7 | 111.3 | 111.9 | 112.6 | 113.2 | 113.8 | 114.4 | 115.0 | 115.6 | 116.2 | 116.8 | 110.7 | 112.6 | 114.4 | 116.2 | 113.5 |
| 1997 | 117.4 | 118.0 | 118.6 | 119.2 | 119.8 | 120.5 | 121.2 | 121.9 | 122.7 | 123.4 | 124.2 | 125.1 | 118.0 | 119.9 | 121.9 | 124.2 | 121.0 |
| 1998 | 125.9 | 126.7 | 127.6 | 128.4 | 129.2 | 130.0 | 130.8 | 131.5 | 132.2 | 132.9 | 133.6 | 134.2 | 126.7 | 129.2 | 131.5 | 133.6 | 130.3 |
| 1999 | 134.8 | 135.4 | 135.9 | 136.5 | 137.0 | 137.5 | 138.0 | 138.6 | 139.1 | 139.7 | 140.3 | 140.9 | 135.4 | 137.0 | 138.6 | 140.3 | 137.8 |
| 2000 | 141.5 | 142.1 | 142.7 | 143.3 | 143.9 | 144.5 | 145.0 | 145.6 | 146.1 | 146.6 | 147.1 | 147.5 | 142.1 | 143.9 | 145.6 | 147.1 | 144.6 |
| 2001 | 147.9 | 148.3 | 148.6 | 148.9 | 149.2 | 149.4 | 149.6 | 149.8 | 150.0 | 150.2 | 150.3 | 150.4 | 148.3 | 149.2 | 149.8 | 150.3 | 149.4 |
| 2002 | 150.6 | 150.7 | 150.9 | 151.0 | 151.1 | 151.3 | 151.4 | 151.6 | 151.7 | 151.9 | 152.0 | 152.2 | 150.7 | 151.1 | 151.6 | 152.0 | 151.4 |
| 2003 | 152.3 | 152.4 | 152.6 | 152.7 | 152.8 | 153.0 | 153.1 | 153.2 | 153.3 | 152.4 | 152.8 | 153.2 | |||||
| Utilization (percent) |
|||||||||||||||||
| 1973 | 87.0 | 88.1 | 88.0 | 87.4 | 87.7 | 87.4 | 87.4 | 86.9 | 87.3 | 87.6 | 87.9 | 87.7 | 87.7 | 87.5 | 87.2 | 87.7 | 87.5 |
| 1974 | 86.8 | 86.2 | 86.0 | 85.6 | 85.8 | 85.6 | 85.1 | 84.2 | 84.0 | 83.1 | 80.5 | 76.7 | 86.3 | 85.7 | 84.4 | 80.1 | 84.1 |
| 1975 | 75.3 | 73.1 | 72.0 | 71.6 | 71.5 | 72.0 | 72.9 | 73.4 | 74.4 | 74.4 | 74.4 | 75.4 | 73.5 | 71.7 | 73.5 | 74.7 | 73.4 |
| 1976 | 76.2 | 77.3 | 77.2 | 77.7 | 77.9 | 77.7 | 78.1 | 78.3 | 78.2 | 78.1 | 78.9 | 79.7 | 76.9 | 77.8 | 78.2 | 78.9 | 77.9 |
| 1977 | 79.3 | 80.4 | 81.5 | 82.2 | 82.6 | 83.0 | 82.9 | 83.1 | 83.0 | 83.0 | 82.8 | 83.6 | 80.4 | 82.6 | 83.0 | 83.1 | 82.3 |
| 1978 | 82.3 | 82.2 | 83.5 | 84.5 | 84.6 | 85.1 | 84.8 | 84.9 | 85.0 | 85.3 | 85.8 | 86.3 | 82.7 | 84.7 | 84.9 | 85.8 | 84.5 |
| 1979 | 85.5 | 85.6 | 85.7 | 84.4 | 85.1 | 85.0 | 84.7 | 83.4 | 83.3 | 83.2 | 82.8 | 82.8 | 85.6 | 84.8 | 83.8 | 82.9 | 84.3 |
| 1980 | 83.1 | 82.9 | 82.1 | 80.3 | 77.7 | 76.3 | 75.5 | 75.7 | 76.8 | 77.7 | 79.0 | 79.0 | 82.7 | 78.1 | 76.0 | 78.6 | 78.8 |
| 1981 | 78.5 | 78.0 | 78.0 | 78.3 | 78.5 | 78.0 | 78.0 | 77.8 | 77.1 | 76.1 | 75.1 | 73.6 | 78.2 | 78.3 | 77.7 | 74.9 | 77.3 |
| 1982 | 71.9 | 73.7 | 73.0 | 72.4 | 72.1 | 71.9 | 71.6 | 70.9 | 70.4 | 69.5 | 69.0 | 68.7 | 72.8 | 72.1 | 71.0 | 69.1 | 71.3 |
| 1983 | 70.3 | 70.1 | 70.8 | 71.6 | 72.5 | 73.1 | 74.1 | 74.5 | 75.8 | 76.6 | 76.8 | 76.9 | 70.4 | 72.4 | 74.8 | 76.8 | 73.6 |
| 1984 | 78.3 | 78.9 | 79.3 | 79.6 | 79.7 | 79.9 | 80.1 | 80.0 | 79.6 | 79.6 | 79.6 | 79.7 | 78.8 | 79.7 | 79.9 | 79.6 | 79.5 |
| 1985 | 79.1 | 78.8 | 79.1 | 78.8 | 78.7 | 78.6 | 78.0 | 78.3 | 78.2 | 77.8 | 78.1 | 78.2 | 79.0 | 78.7 | 78.2 | 78.0 | 78.5 |
| 1986 | 79.0 | 78.5 | 78.1 | 78.3 | 78.4 | 78.0 | 78.3 | 78.4 | 78.5 | 78.6 | 78.8 | 79.4 | 78.6 | 78.2 | 78.4 | 78.9 | 78.5 |
| 1987 | 78.8 | 79.9 | 79.9 | 80.2 | 80.5 | 80.8 | 81.2 | 81.4 | 81.7 | 82.8 | 83.2 | 83.5 | 79.5 | 80.5 | 81.5 | 83.1 | 81.2 |
| 1988 | 83.2 | 83.4 | 83.6 | 84.1 | 84.0 | 84.0 | 84.1 | 84.1 | 84.3 | 84.7 | 84.8 | 85.1 | 83.4 | 84.0 | 84.2 | 84.9 | 84.1 |
| 1989 | 85.6 | 84.6 | 84.4 | 84.2 | 83.4 | 83.3 | 82.2 | 82.7 | 82.3 | 82.0 | 81.8 | 81.8 | 84.8 | 83.7 | 82.4 | 81.9 | 83.2 |
| 1990 | 81.6 | 82.5 | 82.6 | 82.3 | 82.2 | 82.3 | 81.9 | 82.0 | 81.8 | 81.0 | 79.9 | 79.2 | 82.3 | 82.3 | 81.9 | 80.1 | 81.6 |
| 1991 | 78.5 | 77.9 | 77.2 | 77.3 | 77.8 | 78.5 | 78.5 | 78.5 | 79.2 | 78.9 | 78.6 | 78.4 | 77.8 | 77.8 | 78.8 | 78.6 | 78.3 |
| 1992 | 77.8 | 78.5 | 79.0 | 79.3 | 79.6 | 79.6 | 80.1 | 79.7 | 79.5 | 79.8 | 80.1 | 79.8 | 78.4 | 79.5 | 79.8 | 79.9 | 79.4 |
| 1993 | 80.3 | 80.3 | 80.2 | 80.4 | 80.2 | 79.9 | 80.0 | 79.6 | 80.1 | 80.5 | 80.7 | 81.0 | 80.3 | 80.1 | 79.9 | 80.7 | 80.3 |
| 1994 | 81.1 | 81.0 | 81.8 | 82.2 | 82.5 | 82.5 | 82.6 | 82.9 | 82.8 | 83.3 | 83.6 | 84.3 | 81.3 | 82.4 | 82.8 | 83.7 | 82.6 |
| 1995 | 84.3 | 83.9 | 83.6 | 83.1 | 82.8 | 82.7 | 81.8 | 82.3 | 82.7 | 82.1 | 81.8 | 81.7 | 84.0 | 82.9 | 82.3 | 81.9 | 82.7 |
| 1996 | 80.6 | 81.1 | 80.4 | 80.8 | 81.0 | 81.4 | 81.2 | 81.4 | 81.5 | 81.1 | 81.5 | 81.7 | 80.7 | 81.1 | 81.4 | 81.4 | 81.1 |
| 1997 | 81.5 | 82.4 | 82.5 | 82.4 | 82.4 | 82.5 | 82.5 | 82.9 | 83.1 | 83.1 | 83.3 | 83.1 | 82.1 | 82.4 | 82.8 | 83.2 | 82.6 |
| 1998 | 83.3 | 83.0 | 82.5 | 82.6 | 82.3 | 81.3 | 80.7 | 82.1 | 81.5 | 81.9 | 81.4 | 81.2 | 82.9 | 82.1 | 81.4 | 81.5 | 82.0 |
| 1999 | 81.2 | 81.3 | 81.1 | 81.1 | 81.5 | 81.1 | 81.1 | 81.5 | 81.0 | 81.6 | 81.9 | 82.1 | 81.2 | 81.2 | 81.2 | 81.9 | 81.4 |
| 2000 | 81.7 | 81.8 | 82.0 | 82.2 | 82.2 | 82.0 | 81.4 | 80.8 | 80.8 | 80.2 | 79.6 | 79.0 | 81.8 | 82.1 | 81.0 | 79.6 | 81.1 |
| 2001 | 78.0 | 77.4 | 76.9 | 76.6 | 76.1 | 75.4 | 75.1 | 74.6 | 74.1 | 73.8 | 73.5 | 73.4 | 77.5 | 76.0 | 74.6 | 73.5 | 75.4 |
| 2002 | 73.7 | 73.7 | 73.8 | 73.9 | 74.1 | 74.4 | 74.3 | 74.3 | 74.2 | 73.7 | 73.6 | 73.1 | 73.7 | 74.1 | 74.2 | 73.5 | 73.9 |
| 2003 | 73.6 | 73.5 | 73.3 | 72.7 | 72.6 | 72.7 | 73.0 | 72.8 | 73.3 | 73.5 | 72.7 | 73.0 |
Note: Estimates from July 2003 through September 2003 are subject to further revision in the upcoming monthly releases.
[1] See footnote 2 to table 3. Return to table