The 2010 CIA World Factbook

by United States. Central Intelligence Agency

Uruguay
1.6% of GDP (2006)

Uzbekistan
3.5% of GDP (2010)

Vanuatu
NA

Venezuela
1.2% of GDP (2005 est.)

Vietnam
2.5% of GDP (2005 est.)

West Bank
NA

World
roughly 2% of GDP of gross world product (2005 est.)

Yemen
6.6% of GDP (2006)

Zambia
1.8% of GDP (2005 est.)

Zimbabwe
3.8% of GDP (2006)