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

   Accident |
    Related |
   Factor 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,526       95.26       95.26
          2 |         13        0.13       95.39
          3 |          9        0.09       95.48
          4 |        112        1.12       96.60
          5 |         23        0.23       96.83
          6 |          1        0.01       96.84
          7 |          4        0.04       96.88
         14 |         17        0.17       97.05
         15 |          1        0.01       97.06
         16 |         48        0.48       97.54
         18 |         23        0.23       97.77
         19 |         59        0.59       98.36
         99 |        164        1.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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