Figure 5.
The map of Africa displays data levels across countries using categories marked in the legend: 0, 1 to 10, 11 to 20, 21 to 40, 41 to 50, and more than 50. Nigeria, Ethiopia, Kenya, and South Africa are shown in the highest category, more than 50. Countries such as Tanzania, Zambia, Angola, and Ghana fall into middle ranges of 11 to 40. Several others, including Mali, Niger, and Madagascar, fall into 1 to 10. Some smaller regions display 0. Each country is labelled, and the classification highlights regional variation in data distribution.Number of OpEx publications in sample per country
Source: Authors’ own work