Frequencies for first 10,000 rows of paymcare variable in nhamcsopd2006 dataset :

   expected |
  source of |
   payment: |
   medicare |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      8,259       82.59       82.59
        Yes |      1,741       17.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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