Frequencies for first 10,000 rows of ownsmg variable in nhamcsopd1994 dataset :

     hospital ownership |      Freq.     Percent        Cum.
------------------------+-----------------------------------
  Voluntary, non-profit |      7,433       74.33       74.33
Government, non-Federal |      1,514       15.14       89.47
            Proprietary |      1,053       10.53      100.00
------------------------+-----------------------------------
                  Total |     10,000      100.00

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