Frequencies for fldcd_tr variable in vehnit dataset :

 TRUCK FUEL |
       CODE |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.09        0.09
          * |        622       55.73       55.82
          9 |         52        4.66       60.48
          C |          1        0.09       60.57
          D |        172       15.41       75.99
          F |         14        1.25       77.24
          G |        254       22.76      100.00
------------+-----------------------------------
      Total |      1,116      100.00

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