Abuja countries relocated their embassies to Abuja, and many maintain their former embassies as consulates in Lagos, the commercial capital of Nigeria. Abuja is the headquarters of the Economic Community of West African States (ECOWAS) and the regional headquarters of OPEC. Abuja and the FCT have experienced huge population growth; it has been reported that some areas around Abuja have been growing at 20% to 30% per year. Squatter settlements and towns have spread rapidly in and outside the city limits. Tens of thousands of people have been evicted since former FCT minister Nasir Ahmad el-Rufai started a demolition campaign in
Central African Republic income of the Republic is often listed as being approximately $400 a year, one of the lowest in the world, but this figure is based mostly on reported sales of exports and largely ignores the unregistered sale of foods, locally produced alcoholic beverages, diamonds, ivory, bushmeat, and traditional medicine. The currency of Central African Republic is the CFA franc, which is accepted across the former countries of French West Africa and trades at a fixed rate to the euro. Diamonds constitute the country's most important export, accounting for 40–55% of export revenues, but it is estimated that between 30% and