Frequencies for fatals variable in accident dataset :

   Accident |
 Fatalities |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        462       94.48       94.48
          2 |         20        4.09       98.57
          3 |          2        0.41       98.98
          4 |          3        0.61       99.59
          5 |          1        0.20       99.80
         11 |          1        0.20      100.00
------------+-----------------------------------
      Total |        489      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016