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

        Recode of ECTOEE for |
 trending with data prior to |
                        2010 |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                       Blank |         57        0.57        0.57
                         Yes |      9,943       99.43      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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