Human Development Index (UNDP) – The HDI measures average achievement of countries in three dimensions of human development by aggregating the scores based on 3 sub-indices: a long and healthy life, being knowledgeable, and having a decent standard of living.
These dimensions are based on four indicators: life expectancy at birth, mean years of schooling for adults aged 25 and above, expected years of schooling for children of school-entering age, and per capita Gross National Income (GNI).
There are sub-indices for each dimension of human development which score and rank countries, namely, the life expectancy index, education index, and GNI index.
