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

   Accident |
    Related |
   Factor 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,782       87.82       87.82
          1 |        135        1.35       89.17
          2 |         82        0.82       89.99
          3 |         80        0.80       90.79
          4 |         12        0.12       90.91
          5 |         59        0.59       91.50
          6 |         57        0.57       92.07
          7 |         70        0.70       92.77
          8 |         20        0.20       92.97
         20 |          5        0.05       93.02
         22 |        101        1.01       94.03
         23 |          8        0.08       94.11
         24 |         22        0.22       94.33
         25 |         13        0.13       94.46
         26 |         90        0.90       95.36
         27 |         10        0.10       95.46
         28 |         14        0.14       95.60
         40 |          6        0.06       95.66
         41 |          1        0.01       95.67
         42 |          4        0.04       95.71
         43 |          8        0.08       95.79
         44 |          4        0.04       95.83
         45 |         23        0.23       96.06
         46 |         16        0.16       96.22
         47 |          1        0.01       96.23
         48 |          2        0.02       96.25
         49 |          3        0.03       96.28
         50 |          5        0.05       96.33
         51 |          3        0.03       96.36
         99 |        364        3.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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