|
| year | production | consumption |
| 1980 | 0 | 3 |
| 1981 | 0 | 3 |
| 1982 | 0 | 3 |
| 1983 | 0 | 3 |
| 1984 | 0 | 3 |
| 1985 | 0 | 2.89 |
| 1986 | 0 | 3.43 |
| 1987 | 0 | 3.5 |
| 1988 | 0 | 3.65 |
| 1989 | 0 | 3.24 |
| 1990 | 0 | 3.39 |
| 1991 | 0 | 3.85 |
| 1992 | 0 | 3.86 |
| 1993 | 0 | 4.2 |
| 1994 | 0 | 4.56 |
| 1995 | 0 | 4.56 |
| 1996 | 0 | 4.7 |
| 1997 | 0 | 7.6 |
| 1998 | 0 | 7.16 |
| 1999 | 0 | 7.16 |
| 2000 | 0 | 7.48 |
| 2001 | 0 | 7.58 |
| 2002 | 0 | 7.78 |
| 2003 | 0 | 8.05 |
| 2004 | 0 | 8.16 |
| 2005 | 0 | 8.33 |
| 2006 | 0 | 8.5 |
Source: United States Energy Information Administration
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