Frequencies for first 10,000 rows of mraceimp variable in natl2004 dataset :

   Mother's |
       Race |
    Imputed |
   Flag U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,874       98.74       98.74
          1 |        126        1.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 21 Jan 2016