Frequencies for first 10,000 rows of ownsmg variable in nhamcsopd1992 dataset :

     Hospital ownership |      Freq.     Percent        Cum.
------------------------+-----------------------------------
  Voluntary, non-profit |      7,278       72.78       72.78
Government, non-Federal |      1,948       19.48       92.26
            Proprietary |        774        7.74      100.00
------------------------+-----------------------------------
                  Total |     10,000      100.00

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