Frequencies for chainname variable in hcris2552_96_2003 dataset :

                           chainname |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                                     |      6,188       99.92       99.92
             BORGESS HEALTH ALLIANCE |          1        0.02       99.94
        CATHOLIC HEALTHCARE PARTNERS |          1        0.02       99.95
              CRC HEALTH CORPORATION |          1        0.02       99.97
                              FMOLHS |          1        0.02       99.98
MEMORIAL HERMANN CONTINUING CARE HOS |          1        0.02      100.00
-------------------------------------+-----------------------------------
                               Total |      6,193      100.00

by Jean Roth , jroth@nber.org , 8 Sep 2018