Frequencies for s2_1_c2_129 variable in hcris2552_10_2011 dataset :

   medicare |
  certified |
    lung tc |
  term date |
    s200001 |
12900 00200 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,149       99.98       99.98
 05/27/2011 |          1        0.02      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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