The 2006 CIA World Factbook

by United States. Central Intelligence Agency

Portugal
0 cu m (2001 est.)

Puerto Rico
0 cu m (2001 est.)

Qatar
18.2 billion cu m (2004 est.)

Romania
0 cu m (2003 est.)

Russia
157.2 billion cu m (2004 est.)

Saudi Arabia
0 cu m (2002)

Senegal
0 cu m (2001 est.)

Serbia
0 cu m

Singapore
0 cu m (2001 est.)

Slovakia
1 million cu m (2004 est.)