Belarus
males age 15-49: 2,158,875 (2003 est.)
Belgium
males age 15-49: 2,059,131 (2003 est.)
Belize
males age 15-49: 39,337 (2003 est.)
Benin
males age 15-49: 805,603
females age 15-49: 809,961 (2003 est.)
Bhutan
males age 15-49: 283,493 (2003 est.)
Bolivia
males age 15-49: 1,380,883 (2003 est.)
Bosnia and Herzegovina
males age 15-49: 897,856 (2003 est.)
Botswana
males age 15-49: 201,402 (2003 est.)
Brazil
males age 15-49: 34,347,078 (2003 est.)
Brunei
males age 15-49: 63,966 (2003 est.)