Frequencies for first 10,000 rows of cf1 variable in accident dataset :

    RELATED |
   FACTOR 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,502       95.02       95.02
          1 |          7        0.07       95.09
          2 |         15        0.15       95.24
          3 |         11        0.11       95.35
          4 |         28        0.28       95.63
          5 |         13        0.13       95.76
          6 |          1        0.01       95.77
          7 |          2        0.02       95.79
         14 |         67        0.67       96.46
         15 |         17        0.17       96.63
         16 |         22        0.22       96.85
         17 |          7        0.07       96.92
         18 |         17        0.17       97.09
         19 |         94        0.94       98.03
         20 |         84        0.84       98.87
         21 |          5        0.05       98.92
         99 |        108        1.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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