Frequencies for swimpool variable in fmli132 dataset :

   swimpool |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,996       88.67       88.67
         01 |        766       11.33      100.00
------------+-----------------------------------
      Total |      6,762      100.00

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