Sierra Leone
$560 million (2006)

Singapore
$309.6 billion (2008 est.)
$254 billion (2007 est.)

Slovakia
$73.62 billion (2008 est.)
$65.47 billion (2007 est.)

Slovenia
$33.49 billion (2008 est.)
$29.42 billion (2007 est.)

Solomon Islands
$256 million (2006)

Somalia
$798 million (2006)

South Africa
$90.57 billion (2008 est.)
$81.66 billion (2007 est.)

Spain
$415.5 billion (2008 est.)
$380.2 billion (2007 est.)

Sri Lanka
$12.61 billion (2008 est.)
$10.17 billion (2007 est.)

Sudan
$8.229 billion (2008 est.)
$7.722 billion (2007 est.)