The 2009 CIA World Factbook

by United States. Central Intelligence Agency

Bhutan
81.4% of GDP (2004)
81.4% of GDP (2004)

Bolivia
45.2% of GDP (2008 est.)
46.3% of GDP (2007 est.)

Bosnia and Herzegovina
40% of GDP (2008 est.)
34% of GDP (2007 est.)

Botswana
5.9% of GDP (2008 est.)
8.6% of GDP (2004 est.)

Brazil
38.8% of GDP (2008 est.)
52% of GDP (2004 est.)

Bulgaria
14.1% of GDP (2008 est.)
41.9% of GDP (2004 est.)

Cameroon
13.5% of GDP (2008 est.)
69.1% of GDP (2004 est.)

Canada
63.8% of GDP (2008 est.)
64.2% of GDP (2004 est.)

Chile
5.2% of GDP (2008 est.)
12.8% of GDP (2004 est.)

China
15.6% of GDP (2008 est.)
31.4% of GDP (2004 est.)