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

    VEHICLE |
CONFIGURATI |
         ON |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,007       90.07       90.07
          1 |        105        1.05       91.12
          2 |         92        0.92       92.04
          3 |         31        0.31       92.35
          4 |         21        0.21       92.56
          5 |         16        0.16       92.72
          6 |        542        5.42       98.14
          7 |         10        0.10       98.24
          8 |         57        0.57       98.81
          9 |        119        1.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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