It is calculated using the number of deprivations that the multidimensionally deprived children encounter, divided by the maximum number of dimensions considered, showing the average number of deprivations the deprived children experience. The child population per country is calculated multiplying the total population size in 2012 (retrieved from the World Bank Databank, Oct 2014) with the percentage of children as a share of the total population of each country (derived by authors' calculations based on DHS/MICS data, see Annexes 1 and 2). In 2012 these countries represented 78% of the total population of sub-Saharan Africa (and 10% of the world's population).