The city now generates 25% of Nigeria’s total gross domestic product, and it has many millionaires. It is also the 8th fastest growing city in Africa. Unlike the rest of Nigeria , Lagos is an excellent example of what is possible when the government offers energy and other initiatives to its residents. The city now generates 25% of Nigeria’s total gross domestic product, and it has many millionaires. It is also the 8th fastest growing city in Africa. Unlike the rest of Nigeria , Lagos is an excellent example of what is possible when the government offers energy and other initiatives to its residents.