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

   Previous |
      Other |
 Harmful MV |
Convictions |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,366       63.66       63.66
          1 |      1,686       16.86       80.52
          2 |        601        6.01       86.53
          3 |        233        2.33       88.86
          4 |        107        1.07       89.93
          5 |         51        0.51       90.44
          6 |         23        0.23       90.67
          7 |         18        0.18       90.85
          8 |          6        0.06       90.91
          9 |          3        0.03       90.94
         10 |          1        0.01       90.95
         12 |          1        0.01       90.96
         15 |          2        0.02       90.98
         16 |          1        0.01       90.99
         20 |          1        0.01       91.00
         99 |        900        9.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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