Frequencies for first 10,000 rows of racefl variable in nhamcsopd2001 dataset :

was patient |
       race |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,272       82.72       82.72
          1 |      1,728       17.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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