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

   PREVIOUS |
SUSPENSIONS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,343       83.43       83.43
          1 |        680        6.80       90.23
          2 |        232        2.32       92.55
          3 |        132        1.32       93.87
          4 |         68        0.68       94.55
          5 |         31        0.31       94.86
          6 |         19        0.19       95.05
          7 |         15        0.15       95.20
          8 |          5        0.05       95.25
          9 |          4        0.04       95.29
         10 |          3        0.03       95.32
         11 |          2        0.02       95.34
         13 |          2        0.02       95.36
         17 |          1        0.01       95.37
         20 |          1        0.01       95.38
         22 |          1        0.01       95.39
         99 |        389        3.89       99.28
          . |         72        0.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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