Frequencies for pcargtyp variable in parkwork dataset :

 cargo body |
       type |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        909       83.32       83.32
          1 |         70        6.42       89.73
          2 |          6        0.55       90.28
          3 |         19        1.74       92.03
          4 |         11        1.01       93.03
          5 |          2        0.18       93.22
          6 |          2        0.18       93.40
         10 |          1        0.09       93.49
         12 |          2        0.18       93.68
         22 |          9        0.82       94.50
         28 |          8        0.73       95.23
         96 |         15        1.37       96.61
         97 |         22        2.02       98.63
         98 |         13        1.19       99.82
         99 |          2        0.18      100.00
------------+-----------------------------------
      Total |      1,091      100.00

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