|
| year | production | change |
| 1980 | 1622 | NA |
| 1981 | 1811 | 11.65 % |
| 1982 | 2065 | 14.03 % |
| 1983 | 2291 | 10.94 % |
| 1984 | 2480 | 8.25 % |
| 1985 | 2530 | 2.02 % |
| 1986 | 2539 | 0.36 % |
| 1987 | 2406 | -5.24 % |
| 1988 | 2232 | -7.23 % |
| 1989 | 1802 | -19.27 % |
| 1990 | 1820 | 1.00 % |
| 1991 | 1797 | -1.26 % |
| 1992 | 1825.38 | 1.58 % |
| 1993 | 1915.12 | 4.92 % |
| 1994 | 2374.55 | 23.99 % |
| 1995 | 2489.12 | 4.82 % |
| 1996 | 2567.84 | 3.16 % |
| 1997 | 2517.54 | -1.96 % |
| 1998 | 2615.64 | 3.90 % |
| 1999 | 2684 | 2.61 % |
| 2000 | 2275.05 | -15.24 % |
| 2001 | 2282.33 | 0.32 % |
| 2002 | 2291.73 | 0.41 % |
| 2003 | 2093.18 | -8.66 % |
| 2004 | 1845.33 | -11.84 % |
| 2005 | 1648.54 | -10.66 % |
| 2006 | 1490.2 | -9.60 % |
Source: United States Energy Information Administration
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