Frequencies for country variable in enfrep20150610 dataset :

    Country |      Freq.     Percent        Cum.
------------+-----------------------------------
         CA |          1        1.03        1.03
         GB |          1        1.03        2.06
         US |         95       97.94      100.00
------------+-----------------------------------
      Total |         97      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015