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

 cargo body |
       type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,216       92.16       92.16
          1 |        306        3.06       95.22
          2 |         58        0.58       95.80
          3 |         90        0.90       96.70
          4 |         51        0.51       97.21
          5 |          1        0.01       97.22
          6 |          2        0.02       97.24
          7 |         15        0.15       97.39
          8 |         20        0.20       97.59
          9 |          2        0.02       97.61
         10 |         22        0.22       97.83
         11 |          8        0.08       97.91
         12 |          5        0.05       97.96
         22 |         56        0.56       98.52
         28 |         11        0.11       98.63
         96 |         41        0.41       99.04
         97 |         64        0.64       99.68
         98 |         20        0.20       99.88
         99 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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