Frequencies for first 10,000 rows of ethnic variable in nhamcsed1998 dataset :

        patient |
      ethnicity |      Freq.     Percent        Cum.
----------------+-----------------------------------
Hispanic Origin |      1,462       14.62       14.62
   Not Hispanic |      6,685       66.85       81.47
          Blank |      1,853       18.53      100.00
----------------+-----------------------------------
          Total |     10,000      100.00

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