Andorra
males age 16-49: 22,776 (2010 est.)
Angola
males age 16-49: 2,991,424
females age 16-49: 2,893,898 (2010 est.)
Anguilla
males age 16-49: 3,611 (2010 est.)
Antigua and Barbuda
males age 16-49: 20,909
females age 16-49: 23,815 (2010 est.)
Argentina
males age 16-49: 9,934,765
females age 16-49: 9,868,008 (2010 est.)
Armenia
males age 16-49: 809,293
females age 16-49: 862,679 (2010 est.)
Aruba
males age 16-49: 24,779
females age 16-49: 26,090 (2010 est.)
Australia
males age 16-49: 5,275,667
females age 16-49: 5,082,543 (2010 est.)
Austria
males age 16-49: 1,960,781
females age 16-49: 1,926,134 (2010 est.)
Azerbaijan
males age 16-49: 2,336,611
females age 16-49: 2,329,275 (2010 est.)