Frequencies for first 10,000 rows of ethnic variable in nhamcsed1997 dataset :

        patient |
      ethnicity |      Freq.     Percent        Cum.
----------------+-----------------------------------
Hispanic Origin |      1,572       15.72       15.72
   Not Hispanic |      6,407       64.07       79.79
          Blank |      2,021       20.21      100.00
----------------+-----------------------------------
          Total |     10,000      100.00

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