B41 | B42 | B43 | |
B51 | B52:Nigeria(ナイジェリア) | B53 | |
population : 240,367,958 (2009) *** 1.Nigeria(NG)154,729,000 2.Ghana(GH)23,837,000 3.Cote d'Ivoire(CI)21,075,000 4.Cameroon(CM)19,522,000 5.Benin(BJ)8,935,000 *** major city : Lagos Abidjan Luanda |
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B61 | B62 | B63 | |