Frequencies for first 10,000 rows of dr_cf1 variable in vehicle dataset :

     Driver |
    Related |
   Factor 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,644       36.44       36.44
          1 |        177        1.77       38.21
          2 |         11        0.11       38.32
          3 |          1        0.01       38.33
          4 |          8        0.08       38.41
          5 |         17        0.17       38.58
          6 |      1,506       15.06       53.64
          7 |         19        0.19       53.83
         20 |         75        0.75       54.58
         21 |         23        0.23       54.81
         22 |         11        0.11       54.92
         23 |         30        0.30       55.22
         24 |         64        0.64       55.86
         26 |         25        0.25       56.11
         27 |         21        0.21       56.32
         28 |        744        7.44       63.76
         29 |          5        0.05       63.81
         30 |          9        0.09       63.90
         31 |         17        0.17       64.07
         33 |         32        0.32       64.39
         34 |          4        0.04       64.43
         35 |         46        0.46       64.89
         36 |         76        0.76       65.65
         38 |        512        5.12       70.77
         39 |        281        2.81       73.58
         40 |          2        0.02       73.60
         42 |          3        0.03       73.63
         43 |          2        0.02       73.65
         44 |      1,908       19.08       92.73
         45 |          2        0.02       92.75
         46 |          1        0.01       92.76
         47 |          5        0.05       92.81
         48 |        117        1.17       93.98
         50 |         38        0.38       94.36
         51 |        248        2.48       96.84
         52 |          8        0.08       96.92
         53 |         16        0.16       97.08
         99 |        292        2.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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