The 2007 CIA World Factbook

by United States. Central Intelligence Agency

Belgium
19.4% of GDP (2006 est.)

Belize
18.2% of GDP (2006 est.)

Benin
19.1% of GDP (2006 est.)

Bolivia
12.4% of GDP (2006 est.)

Botswana
21.8% of GDP (2006 est.)

Brazil
20.2% of GDP (2006 est.)

Bulgaria
24.8% of GDP (2006 est.)

Burkina Faso
20.5% of GDP (2006 est.)

Burma
11.8% of GDP (2006 est.)

Burundi
11.9% of GDP (2006 est.)