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

    RELATED |
   FACTOR 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,967       99.67       99.67
          4 |          3        0.03       99.70
          6 |          1        0.01       99.71
         14 |          2        0.02       99.73
         15 |          5        0.05       99.78
         18 |          2        0.02       99.80
         19 |          2        0.02       99.82
         99 |         18        0.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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