Frequencies for first 10,000 rows of veh_cf1 variable in vehicle dataset :

    Vehicle |
    Related |
   Factor 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,292       82.92       82.92
          1 |        280        2.80       85.72
          2 |        114        1.14       86.86
          3 |         13        0.13       86.99
          4 |          4        0.04       87.03
          5 |         12        0.12       87.15
          6 |          1        0.01       87.16
          7 |         29        0.29       87.45
          8 |          6        0.06       87.51
          9 |          8        0.08       87.59
         10 |          1        0.01       87.60
         11 |          2        0.02       87.62
         13 |          1        0.01       87.63
         14 |          8        0.08       87.71
         15 |          5        0.05       87.76
         16 |          8        0.08       87.84
         18 |         23        0.23       88.07
         31 |        413        4.13       92.20
         32 |         22        0.22       92.42
         33 |          6        0.06       92.48
         99 |        752        7.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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