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

   Previous |
      Other |
 Harmful MV |
Convictions |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,653       66.53       66.53
          1 |      1,618       16.18       82.71
          2 |        539        5.39       88.10
          3 |        211        2.11       90.21
          4 |         97        0.97       91.18
          5 |         37        0.37       91.55
          6 |         28        0.28       91.83
          7 |         16        0.16       91.99
          8 |         10        0.10       92.09
          9 |          4        0.04       92.13
         10 |          3        0.03       92.16
         11 |          1        0.01       92.17
         12 |          3        0.03       92.20
         99 |        780        7.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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