The 2009 CIA World Factbook

by United States. Central Intelligence Agency

Georgia
8.495 billion cu m (1 January 2009 est.)

Germany
175.6 billion cu m (1 January 2009 est.)

Ghana
22.65 billion cu m (1 January 2009 est.)

Gibraltar
0 cu m (1 January 2009 est.)

Greece
1.982 billion cu m (1 January 2009 est.)

Greenland
0 cu m (1 January 2009 est.)

Grenada
0 cu m (1 January 2009 est.)

Guam
0 cu m (1 January 2009 est.)

Guatemala
2.96 billion cu m (1 January 2006 est.)

Guinea
0 cu m (1 January 2009 est.)