|
| year | production | consumption |
| 1980 | 58 | 16 |
| 1981 | 87 | 16 |
| 1982 | 109 | 19 |
| 1983 | 114 | 19 |
| 1984 | 135 | 19 |
| 1985 | 185 | 19.5 |
| 1986 | 177 | 22.12 |
| 1987 | 174 | 20.84 |
| 1988 | 163 | 19.95 |
| 1989 | 170 | 24.21 |
| 1990 | 161 | 24.49 |
| 1991 | 153.29 | 24.68 |
| 1992 | 140.36 | 24.77 |
| 1993 | 126.86 | 20.52 |
| 1994 | 107.94 | 22.75 |
| 1995 | 111 | 23.35 |
| 1996 | 108 | 22.53 |
| 1997 | 124 | 23.5 |
| 1998 | 120.5 | 23.41 |
| 1999 | 100 | 21.58 |
| 2000 | 84.82 | 22.73 |
| 2001 | 76.65 | 22.54 |
| 2002 | 69.82 | 22.45 |
| 2003 | 67 | 23.5 |
| 2004 | 65.99 | 23.52 |
| 2005 | 82.32 | 23.8 |
| 2006 | 86.4 | 25 |
Source: United States Energy Information Administration
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