Frequencies for first 10,000 rows of owner variable in nhamcsed2004 dataset :

     hospital ownership |      Freq.     Percent        Cum.
------------------------+-----------------------------------
   voluntary non-profit |      6,853       68.53       68.53
government, non-federal |      1,925       19.25       87.78
            proprietary |      1,222       12.22      100.00
------------------------+-----------------------------------
                  Total |     10,000      100.00

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