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, United States, Cayman Islands, Sierra Leone, Oman, Monaco, Hong Kong SAR, China, Cabo Verde, Sao Tome and Principe
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.
