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

   Accident |
    Related |
   Factor 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,563       85.63       85.63
          1 |        125        1.25       86.88
          2 |        112        1.12       88.00
          3 |         87        0.87       88.87
          4 |          9        0.09       88.96
          5 |         70        0.70       89.66
          6 |         53        0.53       90.19
          7 |         76        0.76       90.95
          8 |         18        0.18       91.13
         20 |          9        0.09       91.22
         22 |        154        1.54       92.76
         23 |         11        0.11       92.87
         24 |         34        0.34       93.21
         25 |         18        0.18       93.39
         26 |        107        1.07       94.46
         27 |         24        0.24       94.70
         28 |         15        0.15       94.85
         29 |          5        0.05       94.90
         40 |          6        0.06       94.96
         41 |          5        0.05       95.01
         42 |         11        0.11       95.12
         43 |         40        0.40       95.52
         44 |         11        0.11       95.63
         45 |          8        0.08       95.71
         46 |         25        0.25       95.96
         47 |          1        0.01       95.97
         48 |          6        0.06       96.03
         60 |         10        0.10       96.13
         99 |        387        3.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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