Frequencies for first 10,000 rows of mrace variable in natl2007 dataset :

   Mother's |
     Race U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,232       62.32       62.32
          2 |        423        4.23       66.55
          3 |      2,565       25.65       92.20
          4 |         18        0.18       92.38
          5 |         10        0.10       92.48
          6 |         44        0.44       92.92
          7 |        328        3.28       96.20
         78 |        380        3.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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