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

   Previous |
   Recorded |
Suspensions |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,420       84.20       84.20
          1 |        654        6.54       90.74
          2 |        153        1.53       92.27
          3 |         54        0.54       92.81
          4 |         24        0.24       93.05
          5 |          9        0.09       93.14
          6 |          7        0.07       93.21
          7 |          3        0.03       93.24
          9 |          1        0.01       93.25
         99 |        675        6.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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