Frequencies for first 10,000 rows of veh_sc2 variable in vehicle dataset :

    vehicle |
    related |
factors (2) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,919       99.19       99.19
         44 |          1        0.01       99.20
         99 |         80        0.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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