The 2005 CIA World Factbook

by United States. Central Intelligence Agency

Cambodia
3.1% (2004 est.)

Cameroon
1% (2004 est.)

Canada
1.9% (2004 est.)

Cape Verde
1.5% (2004 est.)

Cayman Islands
2.8% (2002)

Central African Republic
3.6% (2001 est.)

Chad
8% (2004 est.)

Chile
2.4% (2004 est.)

China
4.1% (2004 est.)

Colombia
5.9% (2004 est.)