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

     Driver |
    Related |
   Factor 3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,523       75.23       75.23
          1 |         46        0.46       75.69
          2 |          8        0.08       75.77
          3 |          4        0.04       75.81
          4 |         11        0.11       75.92
          5 |        148        1.48       77.40
          6 |        341        3.41       80.81
          7 |          1        0.01       80.82
         11 |          2        0.02       80.84
         12 |          2        0.02       80.86
         21 |          2        0.02       80.88
         22 |          3        0.03       80.91
         23 |          9        0.09       81.00
         24 |         68        0.68       81.68
         26 |          5        0.05       81.73
         27 |         24        0.24       81.97
         28 |        448        4.48       86.45
         29 |          6        0.06       86.51
         30 |         13        0.13       86.64
         31 |          3        0.03       86.67
         33 |         10        0.10       86.77
         34 |          9        0.09       86.86
         35 |         12        0.12       86.98
         36 |         63        0.63       87.61
         37 |         12        0.12       87.73
         38 |         40        0.40       88.13
         39 |         56        0.56       88.69
         40 |          1        0.01       88.70
         41 |         13        0.13       88.83
         42 |          4        0.04       88.87
         44 |        290        2.90       91.77
         48 |        123        1.23       93.00
         51 |          6        0.06       93.06
         52 |         18        0.18       93.24
         53 |         28        0.28       93.52
         54 |          4        0.04       93.56
         55 |          2        0.02       93.58
         56 |          1        0.01       93.59
         58 |        190        1.90       95.49
         61 |         27        0.27       95.76
         62 |          4        0.04       95.80
         63 |          9        0.09       95.89
         64 |          1        0.01       95.90
         65 |          8        0.08       95.98
         66 |          1        0.01       95.99
         67 |          1        0.01       96.00
         69 |          1        0.01       96.01
         70 |          1        0.01       96.02
         71 |          1        0.01       96.03
         75 |          3        0.03       96.06
         76 |          2        0.02       96.08
         79 |         19        0.19       96.27
         80 |          5        0.05       96.32
         81 |          2        0.02       96.34
         83 |          2        0.02       96.36
         84 |         24        0.24       96.60
         85 |          2        0.02       96.62
         87 |         11        0.11       96.73
         90 |         35        0.35       97.08
         91 |        180        1.80       98.88
         99 |        112        1.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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