The 2009 CIA World Factbook

by United States. Central Intelligence Agency

Comoros
2.8% of GDP (2006)

Congo, Democratic Republic of the
2.5% of GDP (2006)

Congo, Republic of the
3.1% of GDP (2006)

Costa Rica
0.4% of GDP (2006)

Cote d'Ivoire
1.6% of GDP (2005 est.)

Croatia
2.39% of GDP (2005 est.)

Cuba
3.8% of GDP (2006 est.)

Cyprus
3.8% of GDP (2005 est.)

Czech Republic
1.46% of GDP (2007 est.)

Denmark
1.3% of GDP (2007 est.)