The 2003 CIA World Factbook

by United States. Central Intelligence Agency

Burundi
4.5% (2002 est.)

Cambodia
4.5% (2002 est.)

Cameroon
4% (2002 est.)

Canada
3.3% (2002 est.)

Cape Verde
4% (2002 est.)

Cayman Islands
1.7% (2002 est.)

Central African Republic
1.5% (2002 est.)

Chad
7.4% (2002 est.)

Chile
2.1% (2002 est.)

China
8% (official data) (2002 est.)