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

 CARGO BODY |
       TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,103       91.03       91.03
          1 |        291        2.91       93.94
          2 |         66        0.66       94.60
          3 |        123        1.23       95.83
          4 |         82        0.82       96.65
          5 |          5        0.05       96.70
          6 |          6        0.06       96.76
          7 |         21        0.21       96.97
          8 |         18        0.18       97.15
          9 |         22        0.22       97.37
         20 |          5        0.05       97.42
         21 |         55        0.55       97.97
         96 |         23        0.23       98.20
         97 |         52        0.52       98.72
         98 |         35        0.35       99.07
         99 |         93        0.93      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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