Frequencies for first 10,000 rows of ethnicfl variable in nhamcsopd1992 dataset :

        Was |
  patient's |
  ethnicity |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,910       89.10       89.10
          1 |      1,090       10.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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