Most of Africa has experienced Malthusian growth over the past 60 years. Almost all increases in GDP are translated into higher population figures. Income per person is not growing because the difference between population growth and GDP growth is simply not big enough.
You have countries like Somalia where the population is growing at 3% and gdp is growing at 3.5%. That 0.5% is the per capita growth which is the figure that actually matters. Another example would be Kenya where GDP growth is 5.8% and population growth is 2.6%. This means that per capita income growth is actually 3.17%, which is very low for a low income country. African economies' growth in size is masking the lack of growth in income per person.
You have countries like Somalia where the population is growing at 3% and gdp is growing at 3.5%. That 0.5% is the per capita growth which is the figure that actually matters. Another example would be Kenya where GDP growth is 5.8% and population growth is 2.6%. This means that per capita income growth is actually 3.17%, which is very low for a low income country. African economies' growth in size is masking the lack of growth in income per person.