The 2010 CIA World Factbook

by United States. Central Intelligence Agency

Singapore
8.27 billion cu m (2008 est.)

Slovakia
6.493 billion cu m (2009 est.)

Slovenia
1.05 billion cu m (2009 est.)

Solomon Islands
0 cu m (2008 est.)

Somalia
0 cu m (2008 est.)

South Africa
6.45 billion cu m (2008 est.)

Spain
33.88 billion cu m (2009 est.)

Sri Lanka
0 cu m (2008 est.)

Sudan
0 cu m (2008 est.)

Suriname
0 cu m (2008 est.)