Frequencies for first 10,000 rows of ethnic variable in nhamcsopd2000 dataset :

     patient ethnicity |      Freq.     Percent        Cum.
-----------------------+-----------------------------------
    Hispanic or Latino |      1,642       16.42       16.42
Not Hispanic or Latino |      6,512       65.12       81.54
                 Blank |      1,846       18.46      100.00
-----------------------+-----------------------------------
                 Total |     10,000      100.00

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