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

  Fuel Code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,680       16.80       16.80
          B |         61        0.61       17.41
          C |          4        0.04       17.45
          D |        882        8.82       26.27
          F |        295        2.95       29.22
          G |      7,073       70.73       99.95
          N |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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