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

    Non-CDL |
    license |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        493        4.93        4.93
          1 |      8,935       89.35       94.28
          2 |        145        1.45       95.73
          6 |         61        0.61       96.34
          7 |         27        0.27       96.61
          8 |          5        0.05       96.66
          9 |        334        3.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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