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

   Mother's |
      Birth |
Country U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
         AR |          2        0.02        0.02
         BR |          1        0.01        0.03
         CA |          5        0.05        0.08
         CH |          3        0.03        0.11
         CO |          4        0.04        0.15
         CU |          6        0.06        0.21
         DR |         97        0.97        1.18
         EC |          1        0.01        1.19
         GI |          2        0.02        1.21
         GM |          5        0.05        1.26
         GT |          1        0.01        1.27
         IN |          1        0.01        1.28
         IT |          1        0.01        1.29
         JM |          1        0.01        1.30
         JO |          1        0.01        1.31
         MH |          1        0.01        1.32
         MX |          9        0.09        1.41
         NU |          3        0.03        1.44
         PM |          3        0.03        1.47
         SC |          1        0.01        1.48
         SP |          5        0.05        1.53
         TD |          1        0.01        1.54
         US |      6,636       66.36       67.90
         UY |          1        0.01       67.91
         VE |         13        0.13       68.04
         WE |          2        0.02       68.06
         YY |      3,112       31.12       99.18
         ZZ |         82        0.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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