Frequencies for first 10,000 rows of owner variable in nhamcsopd2011 dataset :

     Hospital ownership |      Freq.     Percent        Cum.
------------------------+-----------------------------------
   Voluntary non-profit |      7,342       73.42       73.42
Government, non-Federal |      2,504       25.04       98.46
            Proprietary |        154        1.54      100.00
------------------------+-----------------------------------
                  Total |     10,000      100.00

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