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
         30 |          3        0.03       98.61
         32 |         72        0.72       99.33
         33 |          3        0.03       99.36
         35 |         12        0.12       99.48
         39 |          4        0.04       99.52
         41 |          1        0.01       99.53
         42 |          3        0.03       99.56
         99 |         44        0.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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