Frequencies for first 10,000 rows of medicare variable in nhamcsopd1995 dataset :

   medicare |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,553       85.53       85.53
          1 |      1,447       14.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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