Frequencies for porch_ variable in fmli132 dataset :

     porch_ |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      2,091       30.92       30.92
          C |          9        0.13       31.06
          D |      4,662       68.94      100.00
------------+-----------------------------------
      Total |      6,762      100.00

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