Frequencies for first 10,000 rows of paypriv variable in namcs2011 dataset :

    Private |
  insurance |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      3,877       38.77       38.77
        Yes |      6,123       61.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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