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

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

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