Frequencies for first 10,000 rows of ethun variable in nhamcsopd2009 dataset :

     patient ethnicity |
           (unimputed) |      Freq.     Percent        Cum.
-----------------------+-----------------------------------
                 blank |      1,497       14.97       14.97
    hispanic or latino |      1,957       19.57       34.54
not hispanic or latino |      6,546       65.46      100.00
-----------------------+-----------------------------------
                 Total |     10,000      100.00

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