Frequencies for first 10,000 rows of eptrecer variable in nhamcsed2015 dataset 

       Recode of EPTRECE for |
 trending with data prior to |
                        2010 |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                       Blank |         57        0.57        0.57
                     Unknown |        598        5.98        6.55
                         Yes |      6,360       63.60       70.15
                          No |      2,681       26.81       96.96
Yes, but turned off/not used |        304        3.04      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017