贫困人口比例，按国家贫困线衡量的（2017 PPP）（占人口的百分比） - World, Angola, Greenland, El Salvador, Equatorial Guinea, Central African Republic, Liberia, Ecuador
World Bank, Poverty and Inequality Platform. Data are compiled from official government sources or are computed by World Bank staff using national ( i.e. country–specific ) poverty lines.
