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

 GCW RATING |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,074       90.74       90.74
          1 |          2        0.02       90.76
          2 |        143        1.43       92.19
          3 |        713        7.13       99.32
          9 |         68        0.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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