Frequencies for pcargtyp variable in parkwork dataset :

 cargo body |
       type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        928       81.91       81.91
          1 |         81        7.15       89.06
          2 |          7        0.62       89.67
          3 |         28        2.47       92.14
          4 |         14        1.24       93.38
          5 |          1        0.09       93.47
          6 |          2        0.18       93.65
          7 |          1        0.09       93.73
          8 |          3        0.26       94.00
         10 |          1        0.09       94.09
         11 |          1        0.09       94.17
         12 |          1        0.09       94.26
         22 |          4        0.35       94.62
         96 |         20        1.77       96.38
         97 |         24        2.12       98.50
         98 |         13        1.15       99.65
         99 |          4        0.35      100.00
------------+-----------------------------------
      Total |      1,133      100.00

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