Indicators of population-level coverage of ITNs, sub-Saharan Africa, 2000–2019: a) percentage of households with at least one ITN, b) percentage of households with one ITN for every two people, c) percentage of population with access to an ITN, d) percentage of population using an ITN, e) percentage of children aged under 5 years using an ITN and f) percentage of pregnant women sleeping under an ITN Sources: MAP(131)的ITN覆盖范围模型。