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

    non-cdl |
    license |
       type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        545        5.45        5.45
          1 |      8,820       88.20       93.65
          2 |        114        1.14       94.79
          6 |         51        0.51       95.30
          7 |         49        0.49       95.79
          8 |          5        0.05       95.84
          9 |        416        4.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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