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

    VEHICLE |
CONFIGURATI |
         ON |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,166       91.66       91.66
          1 |         70        0.70       92.36
          2 |         61        0.61       92.97
          3 |         24        0.24       93.21
          4 |         31        0.31       93.52
          5 |        503        5.03       98.55
          6 |         63        0.63       99.18
          7 |         50        0.50       99.68
          9 |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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