Frequencies for first 10,000 rows of emt variable in nhamcsed2006 dataset :

        emt |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,231       92.31       92.31
        yes |        769        7.69      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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