|
| year | production | change |
| 1980 | 19.403 | NA |
| 1981 | 19.181 | -1.14 % |
| 1982 | 17.82 | -7.10 % |
| 1983 | 16.094 | -9.69 % |
| 1984 | 17.466 | 8.52 % |
| 1985 | 16.454 | -5.79 % |
| 1986 | 16.059 | -2.40 % |
| 1987 | 16.621 | 3.50 % |
| 1988 | 17.103 | 2.90 % |
| 1989 | 17.311 | 1.22 % |
| 1990 | 17.81 | 2.88 % |
| 1991 | 17.698 | -0.63 % |
| 1992 | 17.84 | 0.80 % |
| 1993 | 18.095 | 1.43 % |
| 1994 | 18.821 | 4.01 % |
| 1995 | 18.599 | -1.18 % |
| 1996 | 18.854 | 1.37 % |
| 1997 | 18.902 | 0.25 % |
| 1998 | 19.024 | 0.65 % |
| 1999 | 18.832 | -1.01 % |
| 2000 | 19.182 | 1.86 % |
| 2001 | 19.616 | 2.26 % |
| 2002 | 18.928 | -3.51 % |
| 2003 | 19.099 | 0.90 % |
| 2004 | 18.591 | -2.66 % |
| 2005 | 18.051 | -2.90 % |
| 2006 | 18.476 | 2.35 % |
Source: United States Energy Information Administration
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