Ninu idiboyan to waye ni April 21, 2007 Yar'Adua lo bori pelu ibo 24.6 legbegberun to je 70% awon ibo didi si 6.6 legbegberun ti Muhammadu Buhari to je olutako re julo.. 
Ni akọọlẹ ninu isọ 3166-2, apa ọ̀págun isọ 3166 ti International Organization for Standardization (iṣọ) tẹjadesí to ṣètumọ̀ awọn ami fun orukọ awọn ipin koko koko awọn orilẹ-itọkasi.isọ 3166.. 