Frequencies for first 10,000 rows of veh_cf2 variable in vehicle dataset :

    Vehicle |
    Related |
   Factor 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,444       94.44       94.44
          1 |         13        0.13       94.57
          2 |         20        0.20       94.77
          3 |          6        0.06       94.83
          4 |          4        0.04       94.87
          5 |          3        0.03       94.90
          7 |          1        0.01       94.91
          8 |          1        0.01       94.92
          9 |          2        0.02       94.94
         10 |          1        0.01       94.95
         14 |          4        0.04       94.99
         18 |          3        0.03       95.02
         31 |          2        0.02       95.04
         99 |        496        4.96      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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