Frequencies for incl_ssb variable in fmli011 dataset :

   incl_ssb |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      7,558       98.00       98.00
          B |         10        0.13       98.13
          C |         36        0.47       98.60
          D |        107        1.39       99.99
          T |          1        0.01      100.00
------------+-----------------------------------
      Total |      7,712      100.00

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