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

   Accident |
    Related |
   Factor 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,539       95.39       95.39
          1 |          9        0.09       95.48
          2 |         49        0.49       95.97
          3 |         20        0.20       96.17
          4 |         53        0.53       96.70
          5 |         47        0.47       97.17
          6 |         13        0.13       97.30
          7 |         38        0.38       97.68
         15 |          6        0.06       97.74
         16 |         32        0.32       98.06
         17 |          3        0.03       98.09
         99 |        191        1.91      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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