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

   Previous |
   Recorded |
Suspensions |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,250       82.50       82.50
          1 |        600        6.00       88.50
          2 |        251        2.51       91.01
          3 |         80        0.80       91.81
          4 |         48        0.48       92.29
          5 |         11        0.11       92.40
          6 |         16        0.16       92.56
          7 |          6        0.06       92.62
          8 |          2        0.02       92.64
          9 |          1        0.01       92.65
         10 |          1        0.01       92.66
         11 |          1        0.01       92.67
         12 |          1        0.01       92.68
         14 |          1        0.01       92.69
         99 |        731        7.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016