SOURCES: National Transportation Safety Board, Accidents, Fatalities, and
Rates: 1982–2001 (Washington, DC: 2002), also available at http://www.ntsb.gov/aviation/Stats.htm,
as of April 2002; and U.S. Department of Transportation, Bureau of Transportation
Statistics, National Transportation Statistics Historical Compendium: 1960–1992
(Washington, DC: 1993).