Frequencies for porch_ variable in fmli011 dataset :

     porch_ |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      2,774       35.97       35.97
          B |          1        0.01       35.98
          D |      4,937       64.02      100.00
------------+-----------------------------------
      Total |      7,712      100.00

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