Frequencies for first 10,000 rows of racer variable in nhamcsopd1999 dataset :

    patient |
       race |
    recode: |
     white, |
     black, |
      other |      Freq.     Percent        Cum.
------------+-----------------------------------
      White |      6,376       63.76       63.76
      Black |      3,266       32.66       96.42
      Other |        358        3.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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