Frequencies for first 10,000 rows of prov1675 variable in pos1991 dataset :

   provider |
      based |
   facility |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,490       64.90       64.90
          N |      3,320       33.20       98.10
          Y |        190        1.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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