The 2006 CIA World Factbook

by United States. Central Intelligence Agency

Uganda
23.4% of GDP (2005 est.)

Ukraine
20.9% of GDP (2005 est.)

United Arab Emirates
20.7% of GDP (2005 est.)

United Kingdom
16.6% of GDP (2005 est.)

United States
16.7% of GDP (2005 est.)

Uruguay
12.9% of GDP (2005 est.)

Venezuela
19% of GDP (2005 est.)

Vietnam
33.1% of GDP (2005 est.)

Yemen
14.2% of GDP (2005 est.)

Zambia
27.1% of GDP (2005 est.)