Frequencies for first 10,000 rows of mraceimp variable in natlterr2007 dataset :

   Mother's |
       Race |
    Imputed |
   Flag U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,984       99.84       99.84
          1 |         11        0.11       99.95
          2 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015