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

    RELATED |
   FACTOR 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,881       98.81       98.81
          4 |          3        0.03       98.84
          5 |          1        0.01       98.85
          6 |          1        0.01       98.86
         14 |          1        0.01       98.87
         16 |          3        0.03       98.90
         19 |          1        0.01       98.91
         99 |        109        1.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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