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

   Accident |
    Related |
   Factor 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,849       88.49       88.49
          1 |        138        1.38       89.87
          2 |         83        0.83       90.70
          3 |         63        0.63       91.33
          4 |          7        0.07       91.40
          5 |         45        0.45       91.85
          6 |         65        0.65       92.50
          7 |         58        0.58       93.08
          8 |         24        0.24       93.32
         20 |          7        0.07       93.39
         21 |          3        0.03       93.42
         22 |        101        1.01       94.43
         23 |          9        0.09       94.52
         24 |         28        0.28       94.80
         25 |         17        0.17       94.97
         26 |        101        1.01       95.98
         27 |         11        0.11       96.09
         28 |          5        0.05       96.14
         29 |          2        0.02       96.16
         40 |          7        0.07       96.23
         41 |          5        0.05       96.28
         42 |          2        0.02       96.30
         43 |          9        0.09       96.39
         44 |         13        0.13       96.52
         45 |         14        0.14       96.66
         47 |          4        0.04       96.70
         48 |          4        0.04       96.74
         49 |         11        0.11       96.85
         50 |          5        0.05       96.90
         51 |          7        0.07       96.97
         99 |        303        3.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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