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

    RELATED |
   FACTOR 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,924       89.24       89.24
          1 |        174        1.74       90.98
          2 |         77        0.77       91.75
          3 |         11        0.11       91.86
          4 |          6        0.06       91.92
          5 |          6        0.06       91.98
          7 |          9        0.09       92.07
          9 |          7        0.07       92.14
         13 |          3        0.03       92.17
         14 |          5        0.05       92.22
         15 |          3        0.03       92.25
         16 |         11        0.11       92.36
         18 |         21        0.21       92.57
         31 |        409        4.09       96.66
         32 |          5        0.05       96.71
         33 |          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