|
| year | production | change |
| 1980 | 182 | NA |
| 1981 | 213 | 17.03 % |
| 1982 | 260 | 22.07 % |
| 1983 | 339 | 30.38 % |
| 1984 | 475 | 40.12 % |
| 1985 | 564 | 18.74 % |
| 1986 | 572 | 1.42 % |
| 1987 | 566 | -1.05 % |
| 1988 | 554 | -2.12 % |
| 1989 | 596 | 7.58 % |
| 1990 | 630.5 | 5.79 % |
| 1991 | 630 | -0.08 % |
| 1992 | 625.92 | -0.65 % |
| 1993 | 643 | 2.73 % |
| 1994 | 671.42 | 4.42 % |
| 1995 | 695.42 | 3.57 % |
| 1996 | 795 | 14.32 % |
| 1997 | 841.42 | 5.84 % |
| 1998 | 968.5 | 15.10 % |
| 1999 | 1131.8 | 16.86 % |
| 2000 | 1269 | 12.12 % |
| 2001 | 1295.15 | 2.06 % |
| 2002 | 1455.19 | 12.36 % |
| 2003 | 1496.11 | 2.81 % |
| 2004 | 1477.37 | -1.25 % |
| 2005 | 1633.57 | 10.57 % |
| 2006 | 1722.73 | 5.46 % |
Source: United States Energy Information Administration
|
