Frequencies for first 10,000 rows of medicare variable in nhamcsed1993 dataset :

   expected |
  source of |
payment-med |
      icare |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,589       85.89       85.89
          1 |      1,411       14.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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