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

    RELATED |
   FACTOR 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,561       95.61       95.61
          1 |          1        0.01       95.62
          2 |         24        0.24       95.86
          3 |          9        0.09       95.95
          4 |         63        0.63       96.58
          5 |         18        0.18       96.76
          6 |          3        0.03       96.79
          7 |          5        0.05       96.84
         14 |         45        0.45       97.29
         15 |          6        0.06       97.35
         16 |         43        0.43       97.78
         17 |          5        0.05       97.83
         18 |         23        0.23       98.06
         19 |         74        0.74       98.80
         20 |         89        0.89       99.69
         21 |          4        0.04       99.73
         99 |         27        0.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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