The 2009 CIA World Factbook

by United States. Central Intelligence Agency

Spain
0.9% (2008 est.)
3.6% (2007 est.)
4% (2006 est.)

Sri Lanka
6% (2008 est.)
6.8% (2007 est.)
7.7% (2006 est.)

Sudan
6.6% (2008 est.)
10.2% (2007 est.)
11.3% (2006 est.)

Suriname
6% (2008 est.)
5.5% (2007 est.)
4.8% (2006 est.)

Svalbard
NA%

Swaziland
2.7% (2008 est.)
3.5% (2007 est.)
2.8% (2006 est.)

Sweden
-0.4% (2008 est.)
2.7% (2007 est.)
4.5% (2006 est.)

Switzerland
1.8% (2008 est.)
3.6% (2007 est.)
3.6% (2006 est.)

Syria
5.1% (2008 est.)
6.3% (2007 est.)
5.2% (2006 est.)

Taiwan
0.1% (2008 est.)
5.7% (2007 est.)
4.8% (2006 est.)