Frequencies for first 10,000 rows of mrterr variable in natlterr2010 dataset :

   Mother's |
  Residence |
Territory/P |
   osession |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
         AS |      1,234       12.34       12.34
         GU |      3,414       34.14       46.48
         MP |      1,072       10.72       57.20
         PR |      4,263       42.63       99.83
         US |          3        0.03       99.86
         VI |          2        0.02       99.88
         XX |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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