Frequencies for first 10,000 rows of mbrace variable in natl2013 dataset :

   Mother's |
    Bridged |
Race** R*** |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,003       60.03       60.03
          2 |        329        3.29       63.32
          3 |      1,890       18.90       82.22
          4 |         22        0.22       82.44
          5 |         23        0.23       82.67
          6 |        259        2.59       85.26
          7 |         13        0.13       85.39
          8 |         36        0.36       85.75
          9 |         25        0.25       86.00
         10 |        238        2.38       88.38
         11 |         15        0.15       88.53
         12 |         12        0.12       88.65
         13 |        146        1.46       90.11
         14 |         55        0.55       90.66
         21 |        474        4.74       95.40
         22 |        121        1.21       96.61
         23 |        265        2.65       99.26
         24 |         74        0.74      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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