Their total population in 2013 was 6 million. That’s 1/6 leaving for Europe!!
Check out pictures of these migrant boats, they are coming from all over Africa and maybe a bit into the Middle East.
http://news.yahoo.com/eu-leaders-boost-rescue-operations-migrant-boat-disaster-160319834.html (picture on this webpage or just search for “Migrant Boat Mediterranean”; though where they come from doesn’t really change matters much. There’s tons of them coming.