The 2009 CIA World Factbook

by United States. Central Intelligence Agency

Senegal
2.5% (2008 est.)
4.8% (2007 est.)
2.3% (2006 est.)

Serbia
5.4% (2008 est.)
6.9% (2007 est.)
5.2% (2006 est.)

Seychelles
-0.9% (2008 est.)
9.7% (2007 est.)
9.3% (2006 est.)

Sierra Leone
5.5% (2008 est.)
6.4% (2007 est.)
7.4% (2006 est.)

Singapore
1.1% (2008 est.)
7.8% (2007 est.)
8.4% (2006 est.)

Slovakia
6.4% (2008 est.)
10.4% (2007 est.)
8.5% (2006 est.)

Slovenia
3.5% (2008 est.)
6.8% (2007 est.)
5.9% (2006 est.)

Solomon Islands
7.3% (2008 est.)
10.3% (2007 est.)
6.1% (2006 est.)

Somalia
2.6% (2008 est.)
2.6% (2007 est.)
2.6% (2006 est.)

South Africa
3.1% (2008 est.)
5.1% (2007 est.)
5.3% (2006 est.)