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

       Recode of ESMOKEE for |
 trending with data prior to |
                        2010 |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                     Unknown |        238        2.38        2.38
                         Yes |      8,935       89.35       91.73
                          No |        827        8.27      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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