KEY: Btu = British thermal units; GDP = Gross Domestic Product—GDP is shown in terms
of 2000 chained dollars.
SOURCES: U.S. Department of Energy (USDOE), Energy Information Administration (EIA), Monthly
Energy Review, table 2.1, available at http://www.eia.doe.gov/mer/consump.html, as of June 2004.
GDP—U.S. Department of Commerce, Bureau of Economic Analysis, National Income and Product
Account tables, available at http://www.bea.gov/bea/dn/nipaweb/TableView.asp#Mid, as of June 2004.
