The 2009 CIA World Factbook

by United States. Central Intelligence Agency

Turkmenistan
3.4% of GDP (2005 est.)

Tuvalu
NA

Uganda
2.2% of GDP (2006)

Ukraine
1.4% of GDP (2005 est.)

United Arab Emirates
3.1% of GDP (2005 est.)

United Kingdom
2.4% of GDP (2005 est.)

United States
4.06% of GDP (2005 est.)

Uruguay
1.6% of GDP (2006)

Uzbekistan
2% of GDP (2005 est.)

Vanuatu
NA