Frequencies for first 10,000 rows of violchg2 variable in vehicle dataset :

  VIOLATION |
   CHARGE 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,704       97.04       97.04
          1 |         14        0.14       97.18
          2 |         20        0.20       97.38
          3 |          3        0.03       97.41
          7 |          6        0.06       97.47
          8 |          3        0.03       97.50
          9 |          5        0.05       97.55
         11 |         10        0.10       97.65
         12 |          3        0.03       97.68
         15 |          2        0.02       97.70
         18 |          2        0.02       97.72
         21 |          2        0.02       97.74
         22 |          8        0.08       97.82
         23 |          2        0.02       97.84
         26 |          1        0.01       97.85
         31 |          6        0.06       97.91
         37 |          3        0.03       97.94
         41 |          1        0.01       97.95
         42 |          2        0.02       97.97
         46 |          3        0.03       98.00
         52 |          3        0.03       98.03
         54 |          1        0.01       98.04
         61 |          1        0.01       98.05
         62 |          1        0.01       98.06
         71 |          9        0.09       98.15
         72 |         12        0.12       98.27
         73 |          1        0.01       98.28
         74 |          1        0.01       98.29
         75 |          6        0.06       98.35
         76 |         16        0.16       98.51
         79 |          1        0.01       98.52
         83 |          8        0.08       98.60
         89 |          1        0.01       98.61
         92 |          1        0.01       98.62
         93 |          1        0.01       98.63
         99 |         77        0.77       99.40
          . |         60        0.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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