Frequencies for first 10,000 rows of ethnicfl variable in nhamcsed1993 dataset :

        was |
  patient's |
  ethnicity |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,135       81.35       81.35
          1 |      1,865       18.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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