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

 Violations |
    Charged |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,170       81.70       81.70
          1 |        640        6.40       88.10
          2 |         78        0.78       88.88
          3 |         37        0.37       89.25
          4 |         30        0.30       89.55
          5 |         12        0.12       89.67
          6 |        390        3.90       93.57
          7 |         73        0.73       94.30
          8 |         34        0.34       94.64
          9 |        536        5.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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