US Energy Information Administration online database
Date | Value | Change, % |
---|---|---|
2008 | 489,690.69 | 3.87 % |
2007 | 471,436.42 | 2.15 % |
2006 | 461,515.62 | -6.96 % |
2005 | 496,040.00 | 9.27 % |
2004 | 453,975.81 | 3.06 % |
2003 | 440,483.52 | 0.73 % |
2002 | 437,308.86 | 7.09 % |
2001 | 408,340.13 | 0.59 % |
2000 | 405,959.14 | 2.20 % |
1999 | 397,228.83 | 0.10 % |
1998 | 396,832.00 | 1.21 % |
1997 | 392,070.02 |