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

    VEHICLE |
CONFIGURATI |
         ON |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,036       90.36       90.36
          1 |        108        1.08       91.44
          2 |         56        0.56       92.00
          3 |          7        0.07       92.07
          4 |         26        0.26       92.33
          5 |         30        0.30       92.63
          6 |        577        5.77       98.40
          7 |         22        0.22       98.62
          8 |         58        0.58       99.20
          9 |         80        0.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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