Frequencies for earn_ncx variable in fmli011 dataset :

   earn_ncx |      Freq.     Percent        Cum.
------------+-----------------------------------
          D |      7,632       98.96       98.96
          T |         80        1.04      100.00
------------+-----------------------------------
      Total |      7,712      100.00

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