The 2006 CIA World Factbook

by United States. Central Intelligence Agency

Ukraine
2.6% (2005 est.)

United Arab Emirates
8.8% (2005 est.)

United Kingdom
1.9% (2005 est.)

United States
3.2% (2005 est.)

Uruguay
6.8% (2005 est.)

Uzbekistan
7% (2005 est.)

Vanuatu
6.8% (2005 est.)

Venezuela
9.3% (2005 est.)

Vietnam
8.5% (2005 est.)

Virgin Islands
2% (2002 est.)