Key: R = revised.
Notes: Not all graph scales are comparable. 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 onboard fatalities. Highway fatality rates for 1999 through 2008 are revised.
Sources: Passenger car occupants, Light-truck occupants, Large-truck occupants, and Motorcycle riders—U.S. Department of Transportation, National Highway Traffic Safety Administration, National Center for Statistics and Analysis, Traffic Safety Facts, annual Issues and 2010 Motor Vehicle Crashes: Overview, available at http://www-nrd.nhtsa.dot.gov as of December 2011. Large air carriers and General aviation—National 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 October 2011 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 December 2011.