Turkmenistan
22% (2003 est.)
Turks and Caicos Islands
NA%
Tuvalu
NA%
Uganda
5.2% (2006 est.)
Ukraine
6.3% (2006 est.)
United Arab Emirates
4% (2000)
United Kingdom
0% (2006 est.)
United States
4.2% (2006 est.)
Uruguay
12.6% (2006 est.)
Uzbekistan
7.7% (2005 est.)