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

   Previous |
   Recorded |
Suspensions |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,084       80.84       80.84
          1 |        895        8.95       89.79
          2 |        249        2.49       92.28
          3 |         80        0.80       93.08
          4 |         42        0.42       93.50
          5 |         16        0.16       93.66
          6 |         14        0.14       93.80
          7 |         10        0.10       93.90
          8 |          5        0.05       93.95
          9 |          2        0.02       93.97
         17 |          1        0.01       93.98
         99 |        602        6.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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