Frequencies for cntr_hrx variable in fmli011 dataset :

   cntr_hrx |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      7,151       92.73       92.73
          B |         10        0.13       92.86
          C |         71        0.92       93.78
          D |        480        6.22      100.00
------------+-----------------------------------
      Total |      7,712      100.00

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