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

   PREVIOUS |
SUSPENSIONS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,236       82.36       82.36
          1 |        660        6.60       88.96
          2 |        284        2.84       91.80
          3 |        149        1.49       93.29
          4 |         63        0.63       93.92
          5 |         50        0.50       94.42
          6 |         28        0.28       94.70
          7 |         18        0.18       94.88
          8 |          7        0.07       94.95
          9 |          4        0.04       94.99
         10 |          8        0.08       95.07
         11 |          4        0.04       95.11
         12 |          2        0.02       95.13
         13 |          3        0.03       95.16
         15 |          3        0.03       95.19
         16 |          1        0.01       95.20
         17 |          1        0.01       95.21
         19 |          2        0.02       95.23
         23 |          1        0.01       95.24
         99 |        414        4.14       99.38
          . |         62        0.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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