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

    License |
 Compliance |
 with class |
 of vehicle |      Freq.     Percent        Cum.
------------+-----------------------------------
         -1 |         15        0.15        0.15
          0 |        489        4.89        5.04
          1 |         14        0.14        5.18
          2 |        904        9.04       14.22
          3 |      8,172       81.72       95.94
          7 |          1        0.01       95.95
          9 |        358        3.58       99.53
          . |         47        0.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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