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

    Previos |
      Other |
 Harmful MV |
Convictions |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,475       74.75       74.75
          1 |      1,341       13.41       88.16
          2 |        358        3.58       91.74
          3 |        110        1.10       92.84
          4 |         58        0.58       93.42
          5 |         32        0.32       93.74
          6 |          7        0.07       93.81
          7 |          8        0.08       93.89
          8 |          5        0.05       93.94
          9 |          1        0.01       93.95
         11 |          1        0.01       93.96
         14 |          1        0.01       93.97
         16 |          1        0.01       93.98
         99 |        602        6.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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