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

    NON-CDL |
    LICENCE |
       TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        691        6.91        6.91
          1 |      8,579       85.79       92.70
          2 |        201        2.01       94.71
          7 |         17        0.17       94.88
          9 |        447        4.47       99.35
          . |         65        0.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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