The 2010 CIA World Factbook

by United States. Central Intelligence Agency

Namibia
24% of GDP (2010 est.)

Netherlands
18% of GDP (2010 est.)

New Zealand
19.6% of GDP (2010 est.)

Nicaragua
22.8% of GDP (2010 est.)

Nigeria
11.6% of GDP (2010 est.)

Norway
18.6% of GDP (2010 est.)

Oman
26.3% of GDP (2010 est.)

Pakistan
15% of GDP (2010 est.)

Panama
26.8% of GDP (2010 est.)

Papua New Guinea
17.3% of GDP (2010 est.)