of days of school missed due to illness, and environmental sustainability. These criteria are considered to provide a comprehensive assessment of a country's overall development and well-being.
When ranking countries, various factors are taken into account. GNP per capita is an important indicator of economic prosperity, showcasing the wealth and standard of living within a nation. The physical quality of life assesses access to basic needs such as healthcare, sanitation, and education, which are fundamental for a decent standard of living. Inclusion is also a key consideration, evaluating the percentage of national income received by the poorest 40% of the population, ensuring fair distribution of resources. Additionally, population density in agricultural areas reflects the country's ability to sustain its food production. Political rights and civil liberties gauge the level of democracy and freedom within a nation. The number of school days missed due to illness indicates the overall health and well-being of the population, while environmental sustainability examines a country's efforts to preserve its natural resources and mitigate climate change. Overall, these criteria provide a holistic view of a country's progress and help determine its ranking.