Frequencies for first 10,000 rows of mrace variable in natlterr2005 dataset :

   Mother's |
     Race U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        301        3.01        3.01
          2 |         32        0.32        3.33
          3 |          5        0.05        3.38
          4 |        231        2.31        5.69
          5 |         87        0.87        6.56
          6 |          9        0.09        6.65
          7 |      1,031       10.31       16.96
          8 |      2,507       25.07       42.03
         18 |          1        0.01       42.04
         28 |         46        0.46       42.50
         48 |          3        0.03       42.53
         58 |      1,432       14.32       56.85
         78 |        570        5.70       62.55
          . |      3,745       37.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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