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

    RELATED |
   FACTOR 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,922       99.22       99.22
          1 |          1        0.01       99.23
          5 |          1        0.01       99.24
         14 |          4        0.04       99.28
         15 |          2        0.02       99.30
         19 |          8        0.08       99.38
         20 |          2        0.02       99.40
         99 |         60        0.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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