1. World Population Prospects 2019https://population.un.org/wpp/Download/Standard/Population/
2. Countrieshttps://www.who.int/countries
3. New Country Classifications by Income Level: 2021–2022https://blogs.worldbank.org/opendata/new-world-bank-country-classifications-income-level-2021-2022
4. https://gco.iarc.fr/today
5. Global Health Estimates 2019: Deaths by Cause, Age, Sex, by Country and by Region, 2000–2019https://www.who.int/data/gho/data/themes/mortality-and-global-health-estimates/ghe-leading-causes-of-death