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

   Unimputed ethnicity |      Freq.     Percent        Cum.
-----------------------+-----------------------------------
                 Blank |      2,360       23.60       23.60
    Hispanic or Latino |        981        9.81       33.41
Not Hispanic or Latino |      6,659       66.59      100.00
-----------------------+-----------------------------------
                 Total |     10,000      100.00

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