Turkey
less than 0.1% - note: no country specific models provided
(2001 est.)
Turkmenistan
less than 0.1% (2001 est.)
Turks and Caicos Islands
NA%
Tuvalu
NA%
Uganda
5% (2001 est.)
Ukraine
1% (2001 est.)
United Arab Emirates
0.18% (2001 est.)
United Kingdom
0.1% (2001 est.)
United States
0.6% (2001 est.)
Uruguay
0.3% (2001 est.)