|
| year | production | change |
| 1980 | | NA |
| 1981 | | NA |
| 1982 | | NA |
| 1983 | | NA |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | | NA |
| 1988 | | NA |
| 1989 | | NA |
| 1990 | | NA |
| 1991 | | NA |
| 1992 | 1.511 | NA |
| 1993 | 1.589 | 5.16 % |
| 1994 | 1.667 | 4.91 % |
| 1995 | 1.695 | 1.68 % |
| 1996 | 1.695 | 0.00 % |
| 1997 | 1.737 | 2.48 % |
| 1998 | 1.935 | 11.40 % |
| 1999 | 1.964 | 1.50 % |
| 2000 | 1.992 | 1.43 % |
| 2001 | 2.228 | 11.85 % |
| 2002 | 2.038 | -8.53 % |
| 2003 | 2.03 | -0.39 % |
| 2004 | 2.114 | 4.14 % |
| 2005 | 2.108 | -0.28 % |
| 2006 | 2.216 | 5.12 % |
Source: United States Energy Information Administration
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