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

 cargo body |
       type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,201       92.01       92.01
          1 |        340        3.40       95.41
          2 |         57        0.57       95.98
          3 |         81        0.81       96.79
          4 |         55        0.55       97.34
          5 |          6        0.06       97.40
          6 |          8        0.08       97.48
          7 |         12        0.12       97.60
          8 |         27        0.27       97.87
          9 |          1        0.01       97.88
         10 |         14        0.14       98.02
         11 |          4        0.04       98.06
         12 |          2        0.02       98.08
         22 |         57        0.57       98.65
         96 |         37        0.37       99.02
         97 |         59        0.59       99.61
         98 |         24        0.24       99.85
         99 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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