34.5 years
female: 39.2 years (2004 est.)

Germany
total: 41.7 years
male: 40.4 years
female: 43.2 years (2004 est.)

Ghana
total: 20 years
male: 19.8 years
female: 20.3 years (2004 est.)

Gibraltar
total: 39 years
male: 38.8 years
female: 39.2 years (2004 est.)

Greece
total: 40.2 years
male: 39.1 years
female: 41.3 years (2004 est.)

Greenland
total: 33.5 years
male: 34.8 years
female: 31.9 years (2004 est.)

Grenada
total: 20.9 years
male: 21.4 years
female: 20.4 years (2004 est.)

Guadeloupe
total: 31.4 years
male: 30.6 years
female: 32.3 years (2004 est.)

Guam
total: 28.2 years
male: 28 years
female: 28.4 years (2004 est.)

Guatemala
total: 18.4 years
male: 18.1 years
female: 18.6 years (2004 est.)

Guernsey
total: 40.6 years
male: 39.6 years
female: 41.5 years (2004 est.)

Guinea
total: 17.7 years
male: 17.4 years
female: 17.9 years (2004 est.)

Guinea-Bissau
total: 18.9 years
male: 18.3 years
female: 19.5 years (2004 est.)

Guyana
total: 26.2 years
male: 25.6 years
female: 26.8 years (2004 est.)

Haiti
total: 18.1 years
male: 17.6 years
female: 18.7 years (2004 est.)

Honduras
total: 19 years
male: 18.6 years
female: 19.4 years (2004 est.)

Hong Kong
total: 39.4 years
male: 39.3 years
female: 39.6 years (2004 est.)

Hungary
total: 38.4 years
male: 35.9 years
female: 41.1 years (2004 est.)

Iceland
total: 33.8 years
male: 33.3 years
female: 34.3 years (2004 est.)

India
total: 24.4 years
male: 24.4 years
female: 24.4 years (2004 est.)

Indonesia
total: 26.1 years
male: 25.7 years
female: 26.6 years (2004 est.)

Iran
total: 23.5 years
male: 23.3 years
female: 23.7 years (2004 est.)

Iraq
total: 19.2 years
male: 19.1 years
female: 19.3 years (2004 est.)

Ireland
total: 33.4 years
male: 32.6 years
female: 34.2 years (2004 est.)

Israel
total: 29.2 years
male: 28.3 years
female: 30 years (2004 est.)

Italy
total: 41.4 years
male: 39.8 years
female: 43 years (2004 est.)

Jamaica
total: 26.8 years
male: 26.2 years
female: 27.6 years (2004 est.)

Japan
total: 42.3 years
male: 40.5 years
female: 44.1 years (2004 est.)

Jersey
total: 40.3 years
male: 39.6 years
female: 41.1 years (2004 est.)

Jordan
total: 22.2 years
male: 22.8 years
female: