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

 cargo body |
       type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,209       92.09       92.09
          1 |        311        3.11       95.20
          2 |         47        0.47       95.67
          3 |         79        0.79       96.46
          4 |         49        0.49       96.95
          5 |         11        0.11       97.06
          6 |          7        0.07       97.13
          7 |         14        0.14       97.27
          8 |         19        0.19       97.46
          9 |          1        0.01       97.47
         10 |         19        0.19       97.66
         11 |          8        0.08       97.74
         12 |          3        0.03       97.77
         22 |         67        0.67       98.44
         96 |         38        0.38       98.82
         97 |         68        0.68       99.50
         98 |         37        0.37       99.87
         99 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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