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

  Fuel Code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,605       16.05       16.05
          B |         45        0.45       16.50
          C |          6        0.06       16.56
          D |        872        8.72       25.28
          F |        246        2.46       27.74
          G |      7,224       72.24       99.98
          N |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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