The following data from the Centers for Disease Control and Prevention includes deaths of persons who were not residents of the 50 states or the District of Columbia (D.C.). In 1950 (beginning of this data set) deaths of persons in Alaska and Hawaii were excluded and added in thereafter.
Age-adjusted rates are calculated using the year 2000 standard population. Prior to 2001, age-adjusted rates were calculated using standard million proportions based on rounded population numbers. Starting with 2001 data, unrounded population numbers are used to calculate age-adjusted rates.
The homicide rate spike for 2001 includes September 11 terrorism-related deaths for which death certificates were filed as of October 24, 2002.