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

   PREVIOUS |
SUSPENSIONS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,178       81.78       81.78
          1 |        664        6.64       88.42
          2 |        347        3.47       91.89
          3 |        171        1.71       93.60
          4 |         65        0.65       94.25
          5 |         48        0.48       94.73
          6 |         28        0.28       95.01
          7 |         11        0.11       95.12
          8 |         13        0.13       95.25
          9 |          6        0.06       95.31
         10 |          1        0.01       95.32
         11 |          3        0.03       95.35
         12 |          6        0.06       95.41
         14 |          1        0.01       95.42
         15 |          1        0.01       95.43
         16 |          3        0.03       95.46
         17 |          1        0.01       95.47
         24 |          1        0.01       95.48
         99 |        411        4.11       99.59
          . |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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