Frequencies for first 10,000 rows of ewhounker variable in nhamcsed2011 dataset :

   At your ED, if orders for prescr/lab |
    tests submitted electronically, who |
                                submits |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                  Blank |     10,000      100.00      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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