Frequencies for first 10,000 rows of mraceimp variable in linkpe2009psden dataset :

   Mother's |
       Race |
    Imputed |
   Flag U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,987       99.87       99.87
          1 |          9        0.09       99.96
          2 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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