Frequencies for first 10,000 rows of racefl variable in nhamcsed2001 dataset :

was patient |
       race |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,089       80.89       80.89
          1 |      1,911       19.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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