Frequencies for first 10,000 rows of prov4175 variable in posclia2004 dataset :

   prov4175 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,228       32.28       32.28
          N |      6,323       63.23       95.51
          Y |        449        4.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016