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

   EMT seen |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,348       93.48       93.48
        Yes |        652        6.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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