Slovakia
total: 35.43 years
male: 33.85 years
female: 37.25 years (2005 est.)
Slovenia
total: 40.23 years
male: 38.65 years
female: 41.75 years (2005 est.)
Solomon Islands
total: 18.63 years
male: 18.5 years
female: 18.76 years (2005 est.)
Somalia
total: 17.59 years
male: 17.53 years
female: 17.65 years (2005 est.)
South Africa
total: 23.98 years
male: 23.12 years
female: 24.86 years (2005 est.)
Spain
total: 39.51 years
male: 38.18 years
female: 40.93 years (2005 est.)
Sri Lanka
total: 29.44 years
male: 28.38 years
female: 30.51 years (2005 est.)
Sudan
total: 18.07 years
male: 17.86 years
female: 18.29 years (2005 est.)
Suriname
total: 26.13 years
male: 25.72 years
female: 26.58 years (2005 est.)
Swaziland
total: 18.72 years
male: 18.53 years
female: 18.92 years (2005 est.)