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

    RELATED |
   FACTOR 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,820       88.20       88.20
          1 |        174        1.74       89.94
          2 |         85        0.85       90.79
          3 |         12        0.12       90.91
          4 |          4        0.04       90.95
          5 |          7        0.07       91.02
          7 |         13        0.13       91.15
          8 |          2        0.02       91.17
          9 |          9        0.09       91.26
         12 |          1        0.01       91.27
         14 |          6        0.06       91.33
         15 |          1        0.01       91.34
         16 |          5        0.05       91.39
         18 |         24        0.24       91.63
         31 |        423        4.23       95.86
         32 |          4        0.04       95.90
         33 |          8        0.08       95.98
         99 |        402        4.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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