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

     Driver |
    License |
       Type |
 Compliance |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        427        4.27        4.27
          1 |          5        0.05        4.32
          2 |      1,407       14.07       18.39
          3 |      7,574       75.74       94.13
          9 |        587        5.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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