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

  NUMBER OF |
      AXLES |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,087       90.87       90.87
          2 |        154        1.54       92.41
          3 |        111        1.11       93.52
          4 |         53        0.53       94.05
          5 |        439        4.39       98.44
          6 |         17        0.17       98.61
          7 |          4        0.04       98.65
          8 |          2        0.02       98.67
         10 |          1        0.01       98.68
         15 |          2        0.02       98.70
         98 |         97        0.97       99.67
         99 |         33        0.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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