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

    Vehicle |
    Related |
   Factor 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,594       85.94       85.94
          1 |        228        2.28       88.22
          2 |         83        0.83       89.05
          3 |         12        0.12       89.17
          4 |          4        0.04       89.21
          5 |          9        0.09       89.30
          6 |          2        0.02       89.32
          7 |         13        0.13       89.45
          8 |          8        0.08       89.53
          9 |         11        0.11       89.64
         13 |          1        0.01       89.65
         14 |          2        0.02       89.67
         15 |          6        0.06       89.73
         16 |         11        0.11       89.84
         18 |         20        0.20       90.04
         31 |        459        4.59       94.63
         32 |         32        0.32       94.95
         33 |          9        0.09       95.04
         99 |        496        4.96      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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