Frequencies for first 10,000 rows of ethnic variable in nhamcsopd2002 dataset :

     patient ethnicity |      Freq.     Percent        Cum.
-----------------------+-----------------------------------
                 Blank |        709        7.09        7.09
    Hispanic or Latino |      2,595       25.95       33.04
Not Hispanic or Latino |      6,696       66.96      100.00
-----------------------+-----------------------------------
                 Total |     10,000      100.00

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