The 2010 CIA World Factbook

by United States. Central Intelligence Agency

Portugal
total: 39.7 years
male: 37.6 years
female: 41.9 years (2010 est.)

Puerto Rico
total: 36.8 years
male: 35 years
female: 38.5 years (2010 est.)

Qatar
total: 30.8 years
male: 32.9 years
female: 25.4 years (2010 est.)

Romania
total: 38.4 years
male: 36.9 years
female: 39.9 years (2010 est.)

Russia
total: 38.5 years
male: 35.3 years
female: 41.7 years (2010 est.)

Rwanda
total: 18.6 years
male: 18.4 years
female: 18.9 years (2010 est.)

Saint Barthelemy
total: 39.8 years
male: 39.9 years
female: 39.6 years (2010 est.)

Saint Helena, Ascension, and Tristan da Cunha
total: 38.2 years
male: 38.2 years
female: 38.1 years (2010 est.)

Saint Kitts and Nevis
total: 31.5 years
male: 31.5 years
female: 31.5 years (2010 est.)

Saint Lucia
total: 30.3 years
male: 29.3 years
female: 31.4 years (2010 est.)