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

    vehicle |
    related |
factors (1) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,858       98.58       98.58
         32 |         32        0.32       98.90
         33 |          6        0.06       98.96
         35 |         16        0.16       99.12
         36 |         22        0.22       99.34
         37 |          1        0.01       99.35
         39 |          1        0.01       99.36
         41 |          6        0.06       99.42
         42 |          2        0.02       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 , 22 Oct 2016