Frequencies for first 10,000 rows of paymcare variable in nhamcsed2007 dataset :

   medicare |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      8,218       82.18       82.18
        yes |      1,782       17.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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