Tuvalu
NA%
Uganda
9% (2005 est.)
Ukraine
3.2% (2005 est.)
United Arab Emirates
4% (2000)
United Kingdom
-1.9% (2005 est.)
United States
3.2% (2005 est.)
Uruguay
8.5% (2005 est.)
Uzbekistan
7.7% (2005 est.)
Vanuatu
1% (1997 est.)
Venezuela
7.2% (2005 est.)