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

     Driver |
    License |
       Type |
 Compliance |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        469        4.69        4.69
          1 |          9        0.09        4.78
          2 |      1,210       12.10       16.88
          3 |      7,681       76.81       93.69
          9 |        631        6.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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