Notes: 1998–2002 data are revised from previous editions. Data are based on Environmental Protection Agency definitions of light trucks (gross vehicle weight 8,500 pounds or less).
Source: U.S. Environmental Protection Agency, Light-Duty Automotive Technology and Fuel Economy Trends: 1975 Through 2003, appendix E, April 2003, available at
http://www.epa.gov/otaq/fetrends.htm, as of April 2003.