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

    Vehicle |
Configurati |
         on |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,182       91.82       91.82
          1 |        161        1.61       93.43
          2 |         74        0.74       94.17
          4 |         32        0.32       94.49
          5 |         14        0.14       94.63
          6 |        422        4.22       98.85
          7 |         33        0.33       99.18
         19 |          3        0.03       99.21
         20 |          9        0.09       99.30
         21 |         47        0.47       99.77
         98 |          2        0.02       99.79
         99 |         21        0.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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