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

        EMT |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,509       95.09       95.09
        Yes |        491        4.91      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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