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

    RELATED |
   FACTOR 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,615       96.15       96.15
          1 |          3        0.03       96.18
          2 |         15        0.15       96.33
          3 |          6        0.06       96.39
          4 |          4        0.04       96.43
          5 |          1        0.01       96.44
          6 |          1        0.01       96.45
          7 |          5        0.05       96.50
          9 |          1        0.01       96.51
         13 |          1        0.01       96.52
         14 |          2        0.02       96.54
         16 |          1        0.01       96.55
         18 |          7        0.07       96.62
         31 |          3        0.03       96.65
         33 |          4        0.04       96.69
         99 |        331        3.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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