9.3 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.)

Namibia
total: 18.3 years
male: 18 years
female: 18.6 years (2004 est.)

Nauru
total: 19.9 years
male: 19.5 years
female: 20.4 years (2004 est.)

Nepal
total: 19.9 years
male: 19.7 years
female: 20 years (2004 est.)

Netherlands
total: 38.7 years
male: 37.9 years
female: 39.6 years (2004 est.)

Netherlands Antilles
total: 32.1 years
male: 30.6 years
female: 33.6 years (2004 est.)

New Caledonia
total: 27.2 years
male: 26.9 years
female: 27.5 years (2004 est.)

New Zealand
total: 33.4 years
male: 32.6 years
female: 34.1 years (2004 est.)

Nicaragua
total: 20.2 years
male: 19.8 years
female: 20.6 years (2004 est.)

Niger
total: 16.2 years
male: 15.7 years
female: 16.7 years (2004 est.)

Nigeria
total: 18.1 years
male: 18.2 years
female: 17.9 years (2004 est.)

Northern Mariana Islands
total: 29.2 years
male: 31.4 years
female: 28.2 years (2004 est.)

Norway
total: 37.9 years
male: 37 years
female: 38.8 years (2004 est.)

Oman
total: 19.3 years
male: 22.1 years
female: 16.4 years (2004 est.)

Pakistan
total: 19.4 years
male: 19.2 years
female: 19.5 years (2004 est.)

Palau
total: 31.1 years
male: 32.1 years
female: 30 years (2004 est.)

Panama
total: 25.9 years
male: 25.6 years
female: 26.2 years (2004 est.)

Papua New Guinea
total: 21 years
male: 21.1 years
female: 20.8 years (2004 est.)

Paraguay
total: 21.1 years
male: 20.8 years
female: 21.3 years (2004 est.)

Peru
total: 24.6 years
male: 24.4 years
female: 24.9 years (2004 est.)

Philippines
total: 22.1 years
male: 21.6 years
female: 22.6 years (2004 est.)

Poland