The 2004 CIA World Factbook

by United States. Central Intelligence Agency

Saint Lucia
total: 24.5 years
male: 23.7 years
female: 25.3 years (2004 est.)

Saint Pierre and Miquelon
total: 33.3 years
male: 33 years
female: 33.6 years (2004 est.)

Saint Vincent and the Grenadines
total: 25.8 years
male: 25.7 years
female: 26 years (2004 est.)

Samoa
total: 24.2 years
male: 26.8 years
female: 20.8 years (2004 est.)

San Marino
total: 40 years
male: 39.6 years
female: 40.3 years (2004 est.)

Sao Tome and Principe
total: 16.1 years
male: 15.5 years
female: 16.7 years (2004 est.)

Saudi Arabia
total: 21.2 years
male: 22.8 years
female: 19.1 years (2004 est.)

Senegal
total: 18 years
male: 17.4 years
female: 18.5 years (2004 est.)

Serbia and Montenegro
total: 36.6 years
male: 35.1 years
female: 38.1 years (2004 est.)

Seychelles
total: 27.3 years
male: 26.2 years
female: 28.4 years (2004 est.)