Frequencies for first 10,000 rows of mrace variable in natlterr2008 dataset :

   Mother's |
     Race U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        252        2.52        2.52
          2 |         39        0.39        2.91
          3 |          5        0.05        2.96
          4 |        194        1.94        4.90
          5 |         69        0.69        5.59
          6 |          6        0.06        5.65
          7 |      1,011       10.11       15.76
          8 |      2,344       23.44       39.20
         18 |          1        0.01       39.21
         28 |        135        1.35       40.56
         38 |          1        0.01       40.57
         48 |          2        0.02       40.59
         58 |      1,492       14.92       55.51
         78 |        510        5.10       60.61
          . |      3,939       39.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 May 2016