The 2008 CIA World Factbook

by United States. Central Intelligence Agency

Greece
$30,600 (2007 est.)

Greenland
$20,000 (2001 est.)

Grenada
$10,500 (2007 est.)

Guam
$15,000 (2005 est.)

Guatemala
$5,100 (2007 est.)

Guernsey
$44,600 (2005)

Guinea
$1,100 (2007 est.)

Guinea-Bissau
$600 (2007 est.)

Guyana
$3,700 (2007 est.)

Haiti
$1,300 (2007 est.)