Saint Vincent and the Grenadines
total: 25.3 years
male: 25.1 years
female: 25.5 years (2002)
Samoa
total: 23.7 years
male: 26.3 years
female: 20.2 years (2002)
San Marino
total: 39.6 years
male: 39.2 years
female: 40 years (2002)
Sao Tome and Principe
total: 16.1 years
male: 15.5 years
female: 16.7 years (2002)
Saudi Arabia
total: 18.8 years
male: 20.9 years
female: 16.8 years (2002)
Senegal
total: 17.8 years
male: 17.2 years
female: 18.4 years (2002)
Serbia and Montenegro
total: 36.2 years
male: 34.3 years
female: 37.9 years (2002)
Seychelles
total: 26.9 years
male: 25.8 years
female: 27.9 years (2002)
Sierra Leone
total: 17.5 years
male: 17.2 years
female: 17.8 years (2002)
Singapore
total: 34.5 years
male: 34.3 years
female: 34.8 years (2002)