Frequencies for first 10,000 rows of cf2 variable in accident dataset :

   Accident |
    Related |
   Factor 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,844       98.44       98.44
          6 |          2        0.02       98.46
          7 |          1        0.01       98.47
         99 |        153        1.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016