Frequencies for first 10,000 rows of paypriv variable in nhamcsed2006 dataset :

    private |
  insurance |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      5,857       58.57       58.57
        yes |      4,143       41.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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