Frequencies for aptment_ variable in fmli132 dataset :

   aptment_ |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      6,697       99.04       99.04
          C |          9        0.13       99.17
          D |         56        0.83      100.00
------------+-----------------------------------
      Total |      6,762      100.00

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