Frequencies for s2_1_c7_3 variable in hcris2552_10_2013 dataset :

   hospital |
   title 18 |
    payment |
     system |
    (p/t/o) |
    s200001 |
00300 00700 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        290        4.64        4.64
          O |      1,329       21.27       25.91
          P |      4,543       72.71       98.62
          T |         86        1.38      100.00
------------+-----------------------------------
      Total |      6,248      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018