Mauritania
total: 16.9 years
male: 16.7 years
female: 17.2 years (2004 est.)
Mauritius
total: 30.1 years
male: 29.3 years
female: 31.1 years (2004 est.)
Mayotte
total: 16.9 years
male: 18.1 years
female: 15.8 years (2004 est.)
Mexico
total: 24.6 years
male: 23.7 years
female: 25.5 years (2004 est.)
Moldova
total: 32.1 years
male: 29.9 years
female: 34.3 years (2004 est.)
Monaco
total: 45.1 years
male: 43.1 years
female: 47.1 years (2004 est.)
Mongolia
total: 23.9 years
male: 23.6 years
female: 24.3 years (2004 est.)
Montserrat
total: 28.2 years
male: 28 years
female: 28.4 years (2004 est.)
Morocco
total: 23.3 years
male: 22.8 years
female: 23.8 years (2004 est.)
Mozambique
total: 18.2 years
male: 17.8 years
female: 18.6 years (2004 est.)