贫困人口比例，按每天6.85美元每天衡量的（2017 PPP）（占人口的百分比） - Nigeria
World Bank, Poverty and Inequality Platform. Data are based on primary household survey data obtained from government statistical agencies and World Bank country departments. Data for high-income economies are mostly from the Luxembourg Income Study database. For more information and methodology, please see pip.worldbank.org.
