Brazil
males age 18-49: 1,785,930
females age 19-49: 1,731,648 (2005 est.)
British Virgin Islands
males age 18-49: 201 (2005 est.)
Brunei
males age 18-49: 3,478
females age 18-49: 3,342 (2005 est.)
Bulgaria
males age 18-49: 51,023
females age 18-49: 48,651 (2005 est.)
Burma
males age 18-49: 469,841
females: 455,689 (2005 est.)
Burundi
males age 18-49: 91,331
females age 16-49: 90,685 (2005 est.)
Cambodia
males age 18-49: 175,497
females age 18-49: 172,788 (2005 est.)
Cameroon
males age 18-49: 191,619
females age 18-49: 187,082 (2005 est.)
Canada
males age 18-49: 223,821
females age 16-49: 212,900 (2005 est.)
Cayman Islands
males age 18-49: 257 (2005 est.)