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

    RELATED |
   FACTOR 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,507       95.07       95.07
          1 |          5        0.05       95.12
          2 |          7        0.07       95.19
          3 |          2        0.02       95.21
          4 |          5        0.05       95.26
          7 |          3        0.03       95.29
          8 |          2        0.02       95.31
          9 |          3        0.03       95.34
         12 |          1        0.01       95.35
         14 |          1        0.01       95.36
         15 |          1        0.01       95.37
         16 |          2        0.02       95.39
         18 |          7        0.07       95.46
         31 |          7        0.07       95.53
         99 |        447        4.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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