Frequencies for first 10,000 rows of racefl variable in nhamcsopd1997 dataset :

   was race |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,240       82.40       82.40
          1 |      1,760       17.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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