Mauritania
total: 17.2 years
male: 16.9 years
female: 17.4 years (2008 est.)
Mauritius
total: 31.5 years
male: 30.6 years
female: 32.3 years (2008 est.)
Mayotte
total: 17.2 years
male: 18.1 years
female: 16.2 years (2008 est.)
Mexico
total: 26 years
male: 24.9 years
female: 27 years (2008 est.)
Micronesia, Federated States of
total: 21.6 years
male: 21.1 years
female: 22.1 years (2008 est.)
Moldova
total: 34.3 years
male: 32.4 years
female: 36.4 years (2008 est.)
Monaco
total: 45.5 years
male: 43.5 years
female: 47.5 years (2008 est.)
Mongolia
total: 24.9 years
male: 24.6 years
female: 25.3 years (2008 est.)
Montserrat
total: 28.1 years
male: 28 years
female: 28.1 years (2008 est.)
Morocco
total: 24.7 years
male: 24.1 years
female: 25.2 years (2008 est.)