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

    Vehicle |
    Related |
factors (1) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,821       98.21       98.21
         32 |         62        0.62       98.83
         33 |          1        0.01       98.84
         35 |         11        0.11       98.95
         36 |         37        0.37       99.32
         37 |          1        0.01       99.33
         39 |          1        0.01       99.34
         41 |          6        0.06       99.40
         42 |          4        0.04       99.44
         44 |          1        0.01       99.45
         99 |         55        0.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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