Frequencies for axles variable in vehicle dataset :

  NUMBER OF |
      AXLES |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        636       88.83       88.83
          2 |          6        0.84       89.66
          3 |          2        0.28       89.94
         98 |         28        3.91       93.85
         99 |         44        6.15      100.00
------------+-----------------------------------
      Total |        716      100.00

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