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

 GCW RATING |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,124       91.24       91.24
          1 |          3        0.03       91.27
          2 |        146        1.46       92.73
          3 |        674        6.74       99.47
          9 |         53        0.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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