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

    RELATED |
   FACTOR 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,944       99.44       99.44
          1 |          1        0.01       99.45
          3 |          1        0.01       99.46
          4 |          2        0.02       99.48
          5 |          1        0.01       99.49
          6 |          1        0.01       99.50
         14 |          7        0.07       99.57
         15 |          2        0.02       99.59
         17 |          1        0.01       99.60
         19 |          6        0.06       99.66
         20 |          4        0.04       99.70
         22 |          3        0.03       99.73
         23 |         13        0.13       99.86
         99 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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