Namibia
males age 18-49: 217,118 (2005 est.)
Nauru
males age 18-49: 1,963 (2005 est.)
Nepal
males age 18-49: 4.193 million (2005 est.)
Netherlands
males age 20-49: 2,856,691 (2005 est.)
Netherlands Antilles
males age 16-49: 45,273 (2005 est.)
New Zealand
males age 17-49: 809,519 (2005 est.)
Nicaragua
males age 17-49: 1,051,425 (2005 est.)
Niger
males age 18-49: 1,180,027 (2005 est.)
Nigeria
males age 18-49: 15,053,936 (2005 est.)
Norway
males age 18-49: 827,016 (2005 est.)