Frequencies for ptax_fdx variable in fmli011 dataset :

   ptax_fdx |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      7,499       97.24       97.24
          B |          2        0.03       97.26
          C |         27        0.35       97.61
          D |        178        2.31       99.92
          T |          6        0.08      100.00
------------+-----------------------------------
      Total |      7,712      100.00

by Jean Roth , jroth@nber.org , 17 Mar 2016