The 2009 CIA World Factbook

by United States. Central Intelligence Agency

Russia
$491.2 billion (2007)
$271.6 billion (2006)

Saudi Arabia
$108.5 billion (31 December 2008 est.)
$92 billion (31 December 2007 est.)

Serbia
$11.95 billion (2006 est.)

Singapore
$250.2 billion (31 December 2008 est.)
$232.8 billion (31 December 2007 est.)

Slovakia
$44.12 billion (31 December 2008 est.)
$40.7 billion (31 December 2007 est.)

Slovenia
$11.96 billion (31 December 2008 est.)
$10.41 billion (31 December 2007 est.)

South Africa
$120 billion (31 December 2008 est.)
$110.4 billion (31 December 2007 est.)

Spain
$636.5 billion (31 December 2008 est.)
$570.7 billion (31 December 2007 est.)

Sri Lanka
$250.2 billion (31 December 2008 est.)

Swaziland
$NA