Frequencies for first 10,000 rows of paypriv variable in nhamcsopd2010 dataset :

   expected |
  source(s) |
 of payment |
   for this |
     visit: |
    private |
  insurance |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      5,839       58.39       58.39
        yes |      4,161       41.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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