Frequencies for first 10,000 rows of f_morigin variable in natlterr2006 dataset :

  Origin of |
     Mother |
    (umhisp |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      2,890       28.90       28.90
          1 |      7,110       71.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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