The 2008 CIA World Factbook

by United States. Central Intelligence Agency

Russia
5.9% of GDP (2007 est.)

Saudi Arabia
24.3% of GDP (2007 est.)

Senegal
22.9% of GDP (2007 est.)

Serbia
37% of GDP (2007 est.)

Seychelles
92.3% of GDP (2007 est.)

Singapore
96.3% of GDP (2007 est.)

Slovakia
35.9% of GDP (2007 est.)

Slovenia
23.6% of GDP (2007 est.)

South Africa
31.3% of GDP (2007 est.)

Spain
36.2% of GDP (2007 est.)