Frequencies for first 10,000 rows of ethnicfl variable in nhamcsopd2007 dataset :

  ethnicity |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
not imputed |      7,833       78.33       78.33
    imputed |      2,167       21.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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