Frequencies for first 10,000 rows of prvdr_bsd_fac_sw variable in pos2001 dataset :

   provider |
      based |
   facility |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,778       97.78       97.78
          Y |        222        2.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017