Frequencies for first 10,000 rows of owner variable in nhamcsed2005 dataset :

     hospital ownership |      Freq.     Percent        Cum.
------------------------+-----------------------------------
   voluntary non-profit |      6,846       68.46       68.46
government, non-federal |      1,859       18.59       87.05
            proprietary |      1,295       12.95      100.00
------------------------+-----------------------------------
                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016