Frequencies for first 10,000 rows of dr_cf3 variable in vehicle dataset :

     Driver |
    Related |
   Factor 3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,043       90.43       90.43
          1 |         14        0.14       90.57
          4 |          3        0.03       90.60
          5 |          7        0.07       90.67
          6 |         73        0.73       91.40
          7 |          5        0.05       91.45
         21 |          3        0.03       91.48
         23 |          9        0.09       91.57
         24 |         18        0.18       91.75
         25 |          1        0.01       91.76
         26 |          3        0.03       91.79
         27 |          3        0.03       91.82
         28 |         69        0.69       92.51
         29 |          3        0.03       92.54
         30 |          3        0.03       92.57
         33 |          3        0.03       92.60
         35 |         12        0.12       92.72
         36 |         21        0.21       92.93
         38 |         12        0.12       93.05
         39 |         53        0.53       93.58
         40 |          2        0.02       93.60
         41 |          1        0.01       93.61
         42 |          1        0.01       93.62
         44 |        211        2.11       95.73
         46 |          1        0.01       95.74
         48 |         48        0.48       96.22
         49 |          1        0.01       96.23
         50 |          5        0.05       96.28
         51 |         40        0.40       96.68
         52 |          9        0.09       96.77
         53 |         31        0.31       97.08
         99 |        292        2.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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