The 2007 CIA World Factbook

by United States. Central Intelligence Agency

Tuvalu
3,615 (2004 est.)

Uganda
13.76 million (2006 est.)

Ukraine
21.69 million (2006 est.)

United Arab Emirates
2.968 million (2006 est.)

United Kingdom
30.4 million (2006 est.)

United States
151.4 million (includes unemployed) (2006)

Uruguay
1.27 million (2006 est.)

Uzbekistan
14.44 million (2006 est.)

Vanuatu
76,410 (1999)

Venezuela
12.5 million (November 2006 est.)