Turks and Caicos Islands
14 (2000)

Tuvalu
1 (2000)

Uganda
2 (2000)

Ukraine
260 (2001)

United Arab Emirates
1 (2000)

United Kingdom
more than 400 (2000)

United States
7,000 (2002 est.)

Uruguay
14 (2001)

Uzbekistan
42 (2000)

Vanuatu
1 (2000)