Frequencies for first 10,000 rows of emsger variable in nhamcsed2014 dataset :

Recode of EMSGE for trending |
     with data prior to 2010 |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                     Unknown |        348        3.48        3.48
                         Yes |      3,237       32.37       35.85
                          No |      5,527       55.27       91.12
Yes, but turned off/not used |        888        8.88      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017