Frequencies for first 10,000 rows of prov4880 variable in posclia1999 dataset :

   prov4880 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,869       98.69       98.69
          Y |        131        1.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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