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

     Driver |
    Related |
   Factor 3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,209       72.09       72.09
          1 |         53        0.53       72.62
          2 |         17        0.17       72.79
          3 |         11        0.11       72.90
          4 |          6        0.06       72.96
          5 |        116        1.16       74.12
          6 |        403        4.03       78.15
          8 |          2        0.02       78.17
         10 |          2        0.02       78.19
         11 |          5        0.05       78.24
         12 |          2        0.02       78.26
         19 |          1        0.01       78.27
         21 |         10        0.10       78.37
         22 |          1        0.01       78.38
         23 |          5        0.05       78.43
         24 |         81        0.81       79.24
         26 |          8        0.08       79.32
         27 |         33        0.33       79.65
         28 |        499        4.99       84.64
         29 |          6        0.06       84.70
         30 |         25        0.25       84.95
         31 |          2        0.02       84.97
         33 |         22        0.22       85.19
         34 |          6        0.06       85.25
         35 |         12        0.12       85.37
         36 |         79        0.79       86.16
         37 |         18        0.18       86.34
         38 |         71        0.71       87.05
         39 |         56        0.56       87.61
         40 |          1        0.01       87.62
         41 |         24        0.24       87.86
         42 |          1        0.01       87.87
         44 |        297        2.97       90.84
         46 |          3        0.03       90.87
         48 |        123        1.23       92.10
         49 |          3        0.03       92.13
         51 |         21        0.21       92.34
         52 |         28        0.28       92.62
         53 |         34        0.34       92.96
         54 |          4        0.04       93.00
         55 |          4        0.04       93.04
         56 |          2        0.02       93.06
         58 |        172        1.72       94.78
         59 |          2        0.02       94.80
         61 |         69        0.69       95.49
         62 |          8        0.08       95.57
         63 |         22        0.22       95.79
         64 |          2        0.02       95.81
         65 |          9        0.09       95.90
         66 |          6        0.06       95.96
         67 |          4        0.04       96.00
         70 |          1        0.01       96.01
         71 |          1        0.01       96.02
         75 |          4        0.04       96.06
         76 |          5        0.05       96.11
         77 |          1        0.01       96.12
         79 |         33        0.33       96.45
         80 |          6        0.06       96.51
         81 |          1        0.01       96.52
         82 |          2        0.02       96.54
         83 |          2        0.02       96.56
         84 |         21        0.21       96.77
         85 |          1        0.01       96.78
         87 |         16        0.16       96.94
         90 |         35        0.35       97.29
         91 |        171        1.71       99.00
         99 |        100        1.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016