Frequencies for first 10,000 rows of prov1675 variable in pos1993 dataset :

   provider |
      based |
   facility |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,872       68.72       68.72
          N |      2,956       29.56       98.28
          Y |        172        1.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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