The 2004 CIA World Factbook

by United States. Central Intelligence Agency

Burma
11.8% of GDP (2003)

Burundi
9.8% of GDP (2003)

Cambodia
15.9% of GDP (2003)

Cameroon
19.4% of GDP (2003)

Canada
19.5% of GDP (2003)

Cape Verde
16.5% of GDP (2003)

Chad
40.3% of GDP (2003)

Chile
21.2% of GDP (2003)

China
43.4% of GDP (2003)

Colombia
15.9% of GDP (2003)