The research conducted by Judith Tyson indicates that:
https://www.odi.org/experts/1320-judith-tyson – New data of finance by country and sector for sub-Saharan Africa from 2006 to 2015 shows the very heavy concentration to a very few countries and sectors and their lack of correlation to the needs of inclusive growth. Nigeria alone received 45% of all finance and MICs received 67% of all finance. By contrast LDCs received only 33% and many LDCs receiving negligible or no finance. – Extractive and short-term trade