Frequencies for first 10,000 rows of racefl variable in nhamcsopd2003 dataset :

was patient |
       race |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
not imputed |      8,780       87.80       87.80
    imputed |      1,220       12.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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