and Miquelon
total: 34.9 years
male: 34.3 years
female: 35.3 years (2008 est.)

Saint Vincent and the Grenadines
total: 28 years
male: 27.8 years
female: 28.1 years (2008 est.)

Samoa
total: 20.6 years
male: 20.8 years
female: 20.4 years (2008 est.)

San Marino
total: 41.2 years
male: 40.9 years
female: 41.6 years (2008 est.)

Sao Tome and Principe
total: 16.3 years
male: 15.8 years
female: 16.9 years (2008 est.)

Saudi Arabia
total: 21.5 years
male: 22.9 years
female: 19.8 years (2008 est.)

Senegal
total: 18.8 years
male: 18.6 years
female: 19 years (2008 est.)

Serbia
total: 37.5 years
male: 36.1 years
female: 39 years (2008 est.)

Seychelles
total: 28.7 years
male: 27.6 years
female: 29.8 years (2008 est.)

Sierra Leone
total: 17.5 years
male: 17.2 years
female: 17.8 years (2008 est.)

Singapore
total: 38.4 years
male: 38 years
female: 38.8 years (2008 est.)

Slovakia
total: 36.5 years
male: 34.8 years
female: 38.2 years (2008 est.)

Slovenia
total: 41.4 years
male: 39.8 years
female: 42.9 years (2008 est.)

Solomon Islands
total: 19.4 years
male: 19.3 years
female: 19.6 years (2008 est.)

Somalia
total: 17.5 years
male: 17.4 years
female: 17.6 years (2008 est.)

South Africa
total: 24.2 years
male: 23.8 years
female: 24.6 years (2008 est.)

Spain
total: 40.7 years
male: 39.3 years
female: 42.1 years (2008 est.)

Sri Lanka
total: 30.4 years
male: 29.5 years
female: 31.4 years (2008 est.)

Sudan
total: 18.9 years
male: 18.7 years
female: 19.1 years (2008 est.)

Suriname
total: 27.5 years
male: 27.1 years
female: 27.9 years (2008 est.)

Swaziland
total: 18.7 years
male: 18 years
female: 19.4 years (2008 est.)

Sweden
total: 41.3 years
male: 40.2 years
female: 42.4 years (2008 est.)

Switzerland
total: 40.7 years
male: 39.6 years
female: 41.7 years (2008 est.)

Syria
total: 21.4 years
male: 21.3 years
female: 21.5 years (2008 est.)

Taiwan
total: 36 years
male: 35.5 years
female: 36.6 years (2008 est.)

Tajikistan
total: 21.6 years
male: 21.2 years
female: 22.1 years (2008 est.)

Tanzania
total: 17.8 years
male: 17.6 years
female: 18.1 years (2008 est.)

Thailand
total: 32.8 years
male: 32 years
female: 33.7 years (2008 est.)

Timor-Leste
total: 21.