Notes: Air carrier data were smoothed using an exponential smoothing model, with a weight of 0.945 to reduce the year-to-year fluctuations. Air carrier fatalities resulting from the Sept. 11, 2001, terrorist attacks include only those persons onboard aircraft. All 2006 data are revised. 1999 and 2003 data for general aviation fatalities and rates, 1997 data for passenger car occupants fatality, and 1985 data for VMT are revised.
Sources: Passenger car occupants, Light-truck occupants, Large-truck occupants, and Motorcycle ridersU.S. Department of Transportation, National Highway Traffic Safety Administration, National Center for Statistics and Analysis, Traffic Safety Facts 2007, table 7 to 10, available at http://www-nrd.nhtsa.dot.gov as of October 2009. Air carriers and General aviationNational Transportation Safety Board, Annual Review of Aircraft Accident Data U.S. Air Carrier Operations and U.S. General Aviation, available at http://www.ntsb.gov/ as of April 2008 and September 2009 as reported in U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics, tables 2-9 and 2-14, available at http://www.bts.gov/publications/national_transportation_statistics/ as of October 2009.