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

was patient |
  ethnicity |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
not imputed |      8,622       86.22       86.22
    imputed |      1,378       13.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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