|
| year | production | consumption |
| 1980 | 26 | 2256 |
| 1981 | 34 | 2023 |
| 1982 | 34 | 1880 |
| 1983 | 35 | 1835 |
| 1984 | 35 | 1771 |
| 1985 | 50 | 1753 |
| 1986 | 60 | 1764 |
| 1987 | 65 | 1785 |
| 1988 | 67 | 1801 |
| 1989 | 65 | 1844 |
| 1990 | 61 | 1826 |
| 1991 | 58.67 | 1942 |
| 1992 | 57.68 | 1934 |
| 1993 | 55.32 | 1878 |
| 1994 | 56.15 | 1864.56 |
| 1995 | 50 | 1919.94 |
| 1996 | 43.16 | 1949.33 |
| 1997 | 35.67 | 1969.09 |
| 1998 | 34.49 | 2040.27 |
| 1999 | 30.49 | 2029.19 |
| 2000 | 29 | 1998.58 |
| 2001 | 27.92 | 2052.16 |
| 2002 | 26.92 | 1983.25 |
| 2003 | 24.08 | 1999.05 |
| 2004 | 23.33 | 2006.57 |
| 2005 | 21.34 | 1988.65 |
| 2006 | 21.5 | 1981.18 |
Source: United States Energy Information Administration
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