Frequencies for first 10,000 rows of paypriv variable in namcs2006 dataset :

   expected |
  source of |
  payment - |
    private |
  insurance |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      3,914       39.14       39.14
        yes |      6,086       60.86      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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