The 2003 CIA World Factbook

by United States. Central Intelligence Agency

Cameroon
18 years of age (2003 est.)

Canada
16 years of age (2003 est.)

Chad
20 years of age (2003 est.)

Chile
19 years of age (2003 est.)

China
18 years of age (2003 est.)

Colombia
18 years of age (2003 est.)

Congo, Republic of the
20 years of age (2003 est.)

Costa Rica
18 years of age (2003 est.)

Cote d'Ivoire
18 years of age (2003 est.)

Croatia
19 years of age (2003 est.)