Frequencies for first 10,000 rows of prov4995 variable in posclia2001 dataset :

   prov4995 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,727       97.27       97.27
          Y |        273        2.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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