Frequencies for first 10,000 rows of ethun variable in nhamcsed2010 dataset :

   Unimputed ethnicity |      Freq.     Percent        Cum.
-----------------------+-----------------------------------
                 blank |      1,226       12.26       12.26
    hispanic or latino |      1,244       12.44       24.70
not hispanic or latino |      7,530       75.30      100.00
-----------------------+-----------------------------------
                 Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016