What are the sources of data used for calculating the Gender Inequality Index?

The Gender Inequality Index relies on data from major publicly available international databases, including the maternal mortality ratio from United Nations Maternal Mortality Estimation Group (MMEIG), WHO, UNICEF, UNFPA and the World Bank; adolescent birth rates from the UN Department of Economic and Social Affair’s World Population Prospects; educational attainment statistics from the UNESCO Institute for Statistics educational attainment tables and the Barro-Lee data sets; parliamentary representation from the International Parliamentary Union; and labour market participation from the International Labour Organization’s Key Indicators of the Labour Market (KILM) 7th Edition.