1. ^Only 57 sovereign states are listed, including Sahrawi Arab Democratic Republic, Somaliland, and Azawad which are not UN members
2. ^Gross National Income, List of countries by GNI (nominal, Atlas method) per capita World Development Indicators database   , World Bank, , revised 17 October 2008  GNI per capita 2008, Atlas method and PPP; Country classification - lowincome ($995 or less), lower middle income ($996 - $3,945) upper middle income ($3,946 to $12,195), high income ($12,196 or more)
3. ^The different currencies of Africa
4. ^The United Nations is a world-wide organisation with 193 members, see also; Universal Declaration of Human Rights
5. ^54 Members of the African Union
6. ^Community of Sahel-Saharan States is numbering 28 out of 57 African countries.
7. ^The Common Market for Eastern and Southern Africa contains 19 of the 54 member states of the African Union.
8. ^The Southern Africa Development Community has 16 pof the 54 African Union members.
9. ^The Economic Community of West African States has 15 of the 54 members of the African Union.
10. ^The Economic Community of Central African States has 10 of the 54 members of the African Union.
11. ^The West African Economic and Monetary Union is an organization within the ECOWAS containing 8 members.
12. ^The Intergovernmental Authority on Development contains 8 African Union members.
13. ^The Economic and Monetary Community of Central Africa is an organization within the ECCAS containing 6 of its members.
14. ^The West African Monetary Zone contains 6 of the 54 members of the African Union.
15. ^The East African Community contains 5 of the 54 African Union members.
16. ^The Southern African Customs Union contains 6 of the 54 African Union member states.
17. ^The Arab Maghreb Union contains 5 of the 57 countries in Africa.
18. ^The Mano River Union contains 4 members of the African Union.
19. ^The Economic Community of the Great Lakes Countries contains 3 members of the African Union.
20. ^The Liptako–Gourma Authority contains 3 members of the African Union