The 2004 CIA World Factbook

by United States. Central Intelligence Agency

Tonga
total: 20.1 years
male: 19.7 years
female: 20.7 years (2004 est.)

Trinidad and Tobago
total: 30.4 years
male: 30 years
female: 30.9 years (2004 est.)

Tunisia
total: 26.8 years
male: 26.3 years
female: 27.3 years (2004 est.)

Turkey
total: 27.3 years
male: 27.1 years
female: 27.5 years (2004 est.)

Turkmenistan
total: 21.3 years
male: 20.4 years
female: 22.2 years (2004 est.)

Turks and Caicos Islands
total: 27.2 years
male: 27.9 years
female: 26.5 years (2004 est.)

Tuvalu
total: 24.2 years
male: 23.1 years
female: 25.6 years (2004 est.)

Uganda
total: 14.8 years
male: 14.7 years
female: 14.9 years (2004 est.)

Ukraine
total: 38.1 years
male: 34.8 years
female: 41.1 years (2004 est.)

United Arab Emirates
total: 27.7 years
male: 35.7 years
female: 22.4 years (2004 est.)