Frequencies for first 10,000 rows of ethnic variable in namcs1998 dataset :

        patient |
      ethnicity |      Freq.     Percent        Cum.
----------------+-----------------------------------
Hispanic Origin |        785        7.85        7.85
   Not Hispanic |      7,078       70.78       78.63
          Blank |      2,137       21.37      100.00
----------------+-----------------------------------
          Total |     10,000      100.00

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