Frequencies for first 10,000 rows of ethnic variable in namcs1993 dataset :

        patient |
      ethnicity |      Freq.     Percent        Cum.
----------------+-----------------------------------
Hispanic Origin |        689        6.89        6.89
   Not Hispanic |      9,311       93.11      100.00
----------------+-----------------------------------
          Total |     10,000      100.00

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