Frequencies for first 10,000 rows of racefl variable in namcs2007 dataset :

       race |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
not imputed |      6,777       67.77       67.77
    imputed |      3,223       32.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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