Frequencies for wdbs_stx variable in fmli011 dataset :

   wdbs_stx |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      7,683       99.62       99.62
          B |          1        0.01       99.64
          C |         21        0.27       99.91
          D |          6        0.08       99.99
          T |          1        0.01      100.00
------------+-----------------------------------
      Total |      7,712      100.00

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