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

VIN Vehicle |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          M |        983        9.83        9.83
          P |      5,659       56.59       66.42
          T |      2,857       28.57       94.99
          U |        501        5.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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