Frequencies for axles variable in vehicle dataset :

  NUMBER OF |
      AXLES |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        548       87.54       87.54
          3 |          2        0.32       87.86
         98 |         23        3.67       91.53
         99 |         53        8.47      100.00
------------+-----------------------------------
      Total |        626      100.00

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