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

    NON-CDL |
    LICENCE |
       TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        664        6.64        6.64
          1 |      8,629       86.29       92.93
          2 |        195        1.95       94.88
          7 |         32        0.32       95.20
          8 |          2        0.02       95.22
          9 |        405        4.05       99.27
          . |         73        0.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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