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

   Previous |
      Other |
 Harmful MV |
Convictions |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,426       64.26       64.26
          1 |      1,754       17.54       81.80
          2 |        617        6.17       87.97
          3 |        220        2.20       90.17
          4 |        123        1.23       91.40
          5 |         66        0.66       92.06
          6 |         26        0.26       92.32
          7 |          7        0.07       92.39
          8 |          6        0.06       92.45
          9 |          4        0.04       92.49
         11 |          2        0.02       92.51
         12 |          3        0.03       92.54
         99 |        746        7.46      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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