Nigeria is the most populous country in Africa and the eighth most populous country in the world with a population of over 140 million. It is a regional power, listed among the “Next Eleven” economies, and is a member of the Commonwealth of Nations. The economy of Nigeria is one of the fastest growing in the world with the International Monetary Fund projecting a growth of 9% in 2008 and 8.3% in 2009.
Nigeria has a varied landscape. From the Obudu Hills in the southeast through the beaches in the south, the rainforest, the Lagos estuary and savannah in the middle and southwest of the country and the Sahel to the encroaching Sahara in the extreme north. Nigeria’s main rivers are the Niger and the Benue which converge and empty into the Niger Delta, the world’s largest river delta. Nigeria is also an important centre for biodiversity. It is widely believed that the areas surrounding Calabar, Cross River State, contain the world’s largest diversity of butterflies. The drill monkey is only found in the wild in Southeast Nigeria and neighboring Cameroon.
Nigeria is classified as an emerging market, and is rapidly approaching middle income status, with its abundant supply of resources, well-developed financial, legal, communications, transport sectors and stock exchange (the Nigerian Stock Exchange), which is the second largest in Africa. Nigeria is ranked 37th in the world in terms of GDP (PPP) as of 2007. Nigeria is the United States’ largest trading partner in sub-Saharan Africa and supplies a fifth of its oil.