Frequencies for first 10,000 rows of ownsmg variable in nhamcsopd1997 dataset :

     hospital ownership |      Freq.     Percent        Cum.
------------------------+-----------------------------------
   Voluntary non-profit |      5,889       58.89       58.89
Government, non-Federal |      1,923       19.23       78.12
            Proprietary |      2,188       21.88      100.00
------------------------+-----------------------------------
                  Total |     10,000      100.00

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