Mozambique
males age 18-49: 3,793,373 (2005 est.)
Namibia
males age 18-49: 441,293 (2005 est.)
Nauru
males age 18-49: 2,874 (2005 est.)
Nepal
males age 18-49: 6,107,091 (2005 est.)
Netherlands
males age 20-49: 3,557,918 (2005 est.)
Netherlands Antilles
males age 16-49: 54,200 (2005 est.)
New Zealand
males age 17-49: 984,700 (2005 est.)
Nicaragua
males age 17-49: 1,309,970 (2005 est.)
Niger
males age 18-49: 2,135,680 (2005 est.)
Nigeria
males age 18-49: 26,804,314 (2005 est.)