Frequencies for first 10,000 rows of paypriv variable in nhamcsed2011 dataset :

   Expected |
  source of |
   payment: |
    Private |
  insurance |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      6,352       63.52       63.52
        Yes |      3,648       36.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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