Frequencies for first 10,000 rows of owner variable in namcs2000 dataset :

     who owns this office (practice)? |      Freq.     Percent        Cum.
--------------------------------------+-----------------------------------
                             Hospital |        356        3.56        3.56
         Physician or physician group |      8,515       85.15       88.71
        Other health care corporation |        704        7.04       95.75
Health Maintenance Organization (HMO) |        240        2.40       98.15
                                Other |        185        1.85      100.00
--------------------------------------+-----------------------------------
                                Total |     10,000      100.00

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