Frequencies for first 10,000 rows of veh_sc1 variable in vehicle dataset :

    Vehicle |
    Related |
factors (1) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,809       98.09       98.09
         32 |         56        0.56       98.65
         33 |          6        0.06       98.71
         35 |         16        0.16       98.87
         36 |         30        0.30       99.17
         37 |          1        0.01       99.18
         39 |          2        0.02       99.20
         42 |          1        0.01       99.21
         99 |         79        0.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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