Frequencies for first 10,000 rows of einse variable in nhamcsed2012 dataset :

     Does your ED |
        verify an |
       individual |
        patient's |
        insurance |
      eligibility |
   electronically |      Freq.     Percent        Cum.
------------------+-----------------------------------
            Blank |     10,000      100.00      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016