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

    Non-CDL |
    license |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
         -1 |         15        0.15        0.15
          0 |        493        4.93        5.08
          1 |        539        5.39       10.47
          2 |        101        1.01       11.48
          3 |        111        1.11       12.59
          4 |         15        0.15       12.74
          6 |      8,322       83.22       95.96
          9 |        357        3.57       99.53
          . |         47        0.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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