|All other trucks||341.2||23.3|
KEY: TgCO2Eq = teragrams of carbon dioxide equivalent. 1 teragram = 1 trillion grams.
NOTE: Data may not add to total and percentages may not add to 100 because of independent rounding.
SOURCE: U.S. Environmental Protection Agency, Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2003 (Washington, DC: April 2005), table 2-17.