Angola
total: 18 years
male: 18 years
female: 18 years (2009 est.)
Anguilla
total: 32.6 years
male: 31.5 years
female: 33.8 years (2009 est.)
Antigua and Barbuda
total: 29.7 years
male: 28.2 years
female: 31.1 years (2009 est.)
Argentina
total: 30 years
male: 29 years
female: 31 years (2009 est.)
Armenia
total: 31.5 years
male: 28.8 years
female: 34.4 years (2009 est.)
Aruba
total: 37.8 years
male: 36 years
female: 39.5 years (2009 est.)
Australia
total: 37.3 years
male: 36.6 years
female: 38.1 years (2009 est.)
Austria
total: 42.2 years
male: 41.1 years
female: 43.2 years (2009 est.)
Azerbaijan
total: 28.2 years
male: 26.6 years
female: 30 years (2009 est.)
Bahamas, The
total: 28.7 years
male: 27.9 years
female: 29.5 years (2009 est.)