|
| year | production | change |
| 1980 | 46.54 | NA |
| 1981 | 49.56 | 6.49 % |
| 1982 | 48.31 | -2.52 % |
| 1983 | 49.87 | 3.23 % |
| 1984 | 53.41 | 7.10 % |
| 1985 | 50.51 | -5.43 % |
| 1986 | 53.31 | 5.54 % |
| 1987 | 46.99 | -11.86 % |
| 1988 | 57.29 | 21.92 % |
| 1989 | 61.51 | 7.37 % |
| 1990 | 70.94 | 15.33 % |
| 1991 | 72.05 | 1.56 % |
| 1992 | 69.19 | -3.97 % |
| 1993 | 69.77 | 0.84 % |
| 1994 | 81.9 | 17.39 % |
| 1995 | 71.87 | -12.25 % |
| 1996 | 68.24 | -5.05 % |
| 1997 | 73.91 | 8.31 % |
| 1998 | 82.17 | 11.18 % |
| 1999 | 79.9 | -2.76 % |
| 2000 | 73.72 | -7.73 % |
| 2001 | 72.96 | -1.03 % |
| 2002 | 63.46 | -13.02 % |
| 2003 | 74.59 | 17.54 % |
| 2004 | 83.88 | 12.45 % |
| 2005 | 100.7 | 20.05 % |
| 2006 | 112.46 | 11.68 % |
Source: United States Energy Information Administration
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