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

 CARGO BODY |
       TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,075       90.75       90.75
          1 |        308        3.08       93.83
          2 |         59        0.59       94.42
          3 |        125        1.25       95.67
          4 |         61        0.61       96.28
          5 |         18        0.18       96.46
          6 |          7        0.07       96.53
          7 |         17        0.17       96.70
          8 |         20        0.20       96.90
          9 |          7        0.07       96.97
         10 |         11        0.11       97.08
         11 |          1        0.01       97.09
         12 |          1        0.01       97.10
         20 |          2        0.02       97.12
         21 |         55        0.55       97.67
         96 |         40        0.40       98.07
         97 |         33        0.33       98.40
         98 |         94        0.94       99.34
         99 |         66        0.66      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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