British Virgin Islands
males age 18-49: 6,410 (2005 est.)
Brunei
males age 18-49: 103,885
females age 18-49: 93,024 (2005 est.)
Bulgaria
males age 18-49: 1,661,211
females age 18-49: 1,660,982 (2005 est.)
Burkina Faso
males age 18-49: 2,651,687 (2005 est.)
Burma
males age 18-49: 12,268,850
females age 18-49: 12,469,771 (2005 est.)
Burundi
males age 16-49: 1,676,855
females age 16-49: 1,656,366 (2005 est.)
Cambodia
males age 18-49: 3,002,718
females age 18-49: 3,108,254 (2005 est.)
Cameroon
males age 18-49: 3,525,307
females age 18-49: 3,461,406 (2005 est.)
Canada
males age 16-49: 8,216,510
females age 16-49: 8,034,939 (2005 est.)
Cape Verde
males age 18-49: 84,641
females age 18-49: 87,310 (2005 est.)