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

    vehicle |
configurati |
         on |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,208       92.08       92.08
          1 |        128        1.28       93.36
          2 |         72        0.72       94.08
          4 |         41        0.41       94.49
          5 |         15        0.15       94.64
          6 |        419        4.19       98.83
          7 |         28        0.28       99.11
         19 |          7        0.07       99.18
         20 |          6        0.06       99.24
         21 |         61        0.61       99.85
         99 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016