Uganda
total: 15 years
male: 14.9 years
female: 15.1 years (2006 est.)
Ukraine
total: 39.2 years
male: 35.9 years
female: 42.2 years (2006 est.)
United Arab Emirates
total: 28.1 years
male: 34.8 years
female: 23.3 years (2006 est.)
United Kingdom
total: 39.3 years
male: 38.2 years
female: 40.4 years (2006 est.)
United States
total: 36.5 years
male: 35.1 years
female: 37.8 years (2006 est.)
Uruguay
total: 32.7 years
male: 31.3 years
female: 34.2 years (2006 est.)
Uzbekistan
total: 22.7 years
male: 22 years
female: 23.3 years (2006 est.)
Vanuatu
total: 23 years
male: 23 years
female: 23 years (2006 est.)
Venezuela
total: 26 years
male: 25.4 years
female: 26.6 years (2006 est.)
Vietnam
total: 25.9 years
male: 24.8 years
female: 27.1 years (2006 est.)