Frequencies for first 10,000 rows of mrterr variable in natlterr2011 dataset :

   Mother's |
  Residence |
Territory/P |
   osession |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
         AS |      1,256       12.56       12.56
         GU |      3,294       32.94       45.50
         MP |      1,033       10.33       55.83
         PR |      4,405       44.05       99.88
         US |          5        0.05       99.93
         VI |          2        0.02       99.95
         XX |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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