Frequencies for first 10,000 rows of prov0565 variable in pos1997 dataset :

   hospital |
      based |
  indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,844       98.44       98.44
          Y |        156        1.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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