Frequencies for first 10,000 rows of paymcare variable in namcs2011 dataset :

   Medicare |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      8,040       80.40       80.40
        Yes |      1,960       19.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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