United Arab Emirates
males age 16-49: 2,004,558
females age 16-49: 760,637 (2008 est.)
United Kingdom
males age 16-49: 12,121,602
females age 16-49: 11,616,582 (2008 est.)
United States
males age 16-49: 59,413,358
females age 16-49: 59,187,183 (2008 est.)
Uruguay
males age 16-49: 703,955
females age 16-49: 690,296 (2008 est.)
Uzbekistan
males age 16-49: 5,684,540
females age 16-49: 6,432,976 (2008 est.)
Vanuatu
males age 16-49: 40,577 (2008 est.)
Venezuela
males age 16-49: 5,280,974
females age 16-49: 5,768,814 (2008 est.)
Vietnam
males age 16-49: 18,849,274
females age 16-49: 20,575,884 (2008 est.)
Yemen
males age 16-49: 3,585,947
females age 16-49: 3,619,195 (2008 est.)
Zambia
males age 16-49: 1,329,343
females age 16-49: 1,218,114 (2008 est.)