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

    RELATED |
   FACTOR 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,613       96.13       96.13
          1 |          5        0.05       96.18
          2 |         23        0.23       96.41
          3 |          5        0.05       96.46
          4 |          7        0.07       96.53
          5 |          2        0.02       96.55
          7 |          4        0.04       96.59
          9 |          3        0.03       96.62
         12 |          1        0.01       96.63
         13 |          1        0.01       96.64
         16 |          1        0.01       96.65
         18 |          6        0.06       96.71
         31 |          3        0.03       96.74
         99 |        326        3.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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