Frequencies for first 10,000 rows of cf3 variable in accident dataset :

   Accident |
    Related |
   Factor 3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,629       96.29       96.29
          1 |          2        0.02       96.31
          5 |          1        0.01       96.32
          6 |          1        0.01       96.33
          7 |          2        0.02       96.35
          8 |          1        0.01       96.36
         22 |          1        0.01       96.37
         43 |          1        0.01       96.38
         44 |          2        0.02       96.40
         45 |          2        0.02       96.42
         60 |          1        0.01       96.43
         99 |        357        3.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016