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

    non-cdl |
    license |
       type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        527        5.27        5.27
          1 |      8,945       89.45       94.72
          2 |        120        1.20       95.92
          6 |         61        0.61       96.53
          7 |         33        0.33       96.86
          8 |          4        0.04       96.90
          9 |        310        3.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016