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

   PREVIOUS |
SUSPENSIONS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,264       82.64       82.64
          1 |        629        6.29       88.93
          2 |        321        3.21       92.14
          3 |        143        1.43       93.57
          4 |         80        0.80       94.37
          5 |         47        0.47       94.84
          6 |         19        0.19       95.03
          7 |          8        0.08       95.11
          8 |         12        0.12       95.23
          9 |          8        0.08       95.31
         10 |          6        0.06       95.37
         11 |          2        0.02       95.39
         12 |          3        0.03       95.42
         13 |          1        0.01       95.43
         15 |          2        0.02       95.45
         17 |          1        0.01       95.46
         18 |          1        0.01       95.47
         19 |          1        0.01       95.48
         27 |          1        0.01       95.49
         99 |        399        3.99       99.48
          . |         52        0.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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