The 2007 CIA World Factbook

by United States. Central Intelligence Agency

Sudan
$2,300 (2006 est.)

Suriname
$7,100 (2006 est.)

Swaziland
$5,200 (2006 est.)

Sweden
$31,600 (2006 est.)

Switzerland
$33,600 (2006 est.)

Syria
$4,000 (2006 est.)

Taiwan
$29,000 (2006 est.)

Tajikistan
$1,300 (2006 est.)

Tanzania
$800 (2006 est.)

Thailand
$9,100 (2006 est.)