(1)Yakubu Gowon: $1 = N0.658….. Year 1972 – 1974
(2) Murtala Muhammed: $ 1 = N0. 61…..Year 1975.
(3) Olusegun Obasanjo. $1 = N0.60….. Year 1976 – 1978
(4) Shehu Shagari: $1 = N0.69….Year 1980 – 1982
(5) Mohammad Buhari: $1 = N0.76….Year 1983 – 1984.
(6) Ibrahim Babangida: $1 = N21.90….. Year 1985 – 1992.
(7) Sani Abacha: $1 = N84.58 …..Year 1994 – 1997..
(8) Abdulsalami Abubakar: $1 = N84.70…. Year 1998.
(9) Olusegun Obasanjo: $1 = N131.80…. Year 1999 – 2006
(10) Umaru Musa Yar’ Adua: $1 = N171…. Year 2007 – 2009.
(11) Goodluck Jonathan: $1 = N199…. Year 2010 – 2014.
(12) Muhammadu Buhari: $1 = N460…. Year 2015 – 2023.
(14) Bola Tinubu: $1 = N1555…. Year 2024 – 2025.
