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

    related |
factors (1) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,274       92.74       92.74
          2 |          6        0.06       92.80
          3 |         18        0.18       92.98
          4 |         34        0.34       93.32
          5 |          2        0.02       93.34
          7 |          1        0.01       93.35
         13 |          2        0.02       93.37
         14 |        253        2.53       95.90
         15 |         25        0.25       96.15
         16 |         29        0.29       96.44
         17 |          1        0.01       96.45
         18 |         22        0.22       96.67
         19 |        118        1.18       97.85
         20 |         91        0.91       98.76
         21 |          5        0.05       98.81
         23 |         65        0.65       99.46
         24 |          4        0.04       99.50
         26 |          8        0.08       99.58
         27 |          8        0.08       99.66
         28 |         23        0.23       99.89
         99 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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