Mayotte
total: 16.9 years
male: 18.1 years
female: 15.7 years (2002)
Mexico
total: 23.8 years
male: 22.9 years
female: 24.6 years (2002)
Moldova
total: 32 years
male: 29.8 years
female: 34.2 years (2002)
Monaco
total: 45 years
male: 43 years
female: 47 years (2002)
Mongolia
total: 23.5 years
male: 23.2 years
female: 23.9 years (2002)
Montserrat
total: 27.8 years
male: 27.7 years
female: 27.9 years (2002)
Morocco
total: 23 years
male: 22.5 years
female: 23.5 years (2002)
Mozambique
total: 19 years
male: 18.7 years
female: 19.3 years (2002)
Namibia
total: 18.3 years
male: 17.9 years
female: 18.6 years (2002)
Nauru
total: 19.6 years
male: 19.3 years
female: 20 years (2002)