The 2003 CIA World Factbook

by United States. Central Intelligence Agency

Bhutan
18 years of age (2003 est.)

Bolivia
19 years of age (2003 est.)

Bosnia and Herzegovina
19 years of age (2003 est.)

Botswana
18 years of age (2003 est.)

Brazil
18 years of age (2003 est.)

Brunei
18 years of age (2003 est.)

Bulgaria
19 years of age (2003 est.)

Burma
18 years of age (2003 est.)

Burundi
16 years of age (2003 est.)

Cambodia
18 years of age (2003 est.)