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

 cargo body |
       type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,238       92.38       92.38
          1 |        317        3.17       95.55
          2 |         55        0.55       96.10
          3 |         81        0.81       96.91
          4 |         51        0.51       97.42
          5 |          7        0.07       97.49
          6 |          4        0.04       97.53
          7 |         20        0.20       97.73
          8 |         19        0.19       97.92
          9 |          2        0.02       97.94
         10 |         19        0.19       98.13
         11 |          7        0.07       98.20
         12 |          1        0.01       98.21
         22 |         46        0.46       98.67
         96 |         28        0.28       98.95
         97 |         58        0.58       99.53
         98 |         32        0.32       99.85
         99 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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