Frequencies for ssov_rpx variable in fmli011 dataset :

   ssov_rpx |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      7,686       99.66       99.66
          B |          3        0.04       99.70
          C |         19        0.25       99.95
          D |          3        0.04       99.99
          T |          1        0.01      100.00
------------+-----------------------------------
      Total |      7,712      100.00

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