Frequencies for first 10,000 rows of paymcare variable in nhamcsed2012 dataset :

   Expected |
  source of |
   payment: |
   Medicare |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      8,105       81.05       81.05
        Yes |      1,895       18.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016