Frequencies for cargo_bt variable in vehnit dataset :

 CARGO BODY |
       TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,228       82.92       82.92
          1 |        111        7.49       90.41
          2 |          7        0.47       90.88
          3 |         32        2.16       93.05
          4 |         20        1.35       94.40
          5 |          3        0.20       94.60
          6 |          2        0.14       94.73
          7 |          4        0.27       95.00
          8 |          2        0.14       95.14
         21 |          8        0.54       95.68
         96 |          9        0.61       96.29
         97 |         14        0.95       97.23
         98 |         29        1.96       99.19
         99 |         12        0.81      100.00
------------+-----------------------------------
      Total |      1,481      100.00

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