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

    vehicle |
    related |
factors (1) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,778       97.78       97.78
         30 |          1        0.01       97.79
         32 |         76        0.76       98.55
         33 |          1        0.01       98.56
         35 |         13        0.13       98.69
         36 |         42        0.42       99.11
         39 |          3        0.03       99.14
         41 |          6        0.06       99.20
         42 |          1        0.01       99.21
         44 |          1        0.01       99.22
         99 |         78        0.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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