Funding for this research was provided by:
African Development Bank Group (2100155022217)
Received: 19 March 2021
Accepted: 13 September 2021
First Online: 14 January 2022
: Not applicable.
: We, the authors, have seen and approved the final version of the manuscript being submitted. We declare that the article is the authors' original work, has not received prior publication and is not under consideration for publication elsewhere.
: The authors declare that they have no conflict of interest.