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

   PREVIOUS |
SUSPENSIONS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,102       81.02       81.02
          1 |        619        6.19       87.21
          2 |        301        3.01       90.22
          3 |        133        1.33       91.55
          4 |         79        0.79       92.34
          5 |         33        0.33       92.67
          6 |         20        0.20       92.87
          7 |         16        0.16       93.03
          8 |          7        0.07       93.10
          9 |          9        0.09       93.19
         10 |          8        0.08       93.27
         11 |          3        0.03       93.30
         13 |          2        0.02       93.32
         14 |          1        0.01       93.33
         15 |          1        0.01       93.34
         16 |          2        0.02       93.36
         17 |          1        0.01       93.37
         18 |          3        0.03       93.40
         25 |          1        0.01       93.41
         99 |        599        5.99       99.40
          . |         60        0.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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