Frequencies for country variable in enfrep20160406 dataset : Country | Freq. Percent Cum. --------------+----------------------------------- Canada | 1 0.88 0.88 Iceland | 14 12.39 13.27 Japan | 1 0.88 14.16 United States | 97 85.84 100.00 --------------+----------------------------------- Total | 113 100.00 by Jean Roth , jroth@nber.org , 21 Jul 2016