Frequencies for first 10,000 rows of medicare variable in nhamcsed1996 dataset :

   medicare |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,622       86.22       86.22
          1 |      1,378       13.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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