# Sources

Every figure on this site is Our World in Data's, as published. Each indicator's citation is below, as Our World in Data asks it to be cited.

- [Life expectancy](/sources/life-expectancy): Riley (2005); Zijdeman et al. (2015); HMD (2025); UN WPP (2024) – with major processing by Our World in Data
- [Child mortality rate](/sources/child-mortality): Gapminder (2015); UN Inter-agency Group for Child Mortality Estimation (2025) – processed by Our World in Data
- [Population growth rate](/sources/population-growth): UN, World Population Prospects (2024) – processed by Our World in Data
- [GDP per capita](/sources/gdp-per-capita): Eurostat, OECD, IMF, and World Bank (2026) – with minor processing by Our World in Data
- [Annual GDP growth (%)](/sources/gdp-growth): World Bank – processed by Our World in Data
- [Inflation, consumer prices (annual %)](/sources/inflation): International Monetary Fund (IMF) International Financial Statistics, via World Bank (2026) – processed by Our World in Data
- [Unemployment rate](/sources/unemployment): ILO Modelled Estimates, via World Bank (2026) – processed by Our World in Data
- [Share of population in poverty ($3 a day)](/sources/extreme-poverty): World Bank Poverty and Inequality Platform (2026) – with major processing by Our World in Data
- [CO₂ emissions per capita](/sources/co2-per-capita): Global Carbon Budget (2025); Population based on various sources (2024) – with major processing by Our World in Data
- [Share of the population with access to electricity](/sources/electricity-access): Data compiled from multiple sources by the World Bank – with minor processing by Our World in Data
- [Share of the population using the Internet](/sources/internet-use): World Telecommunication/ICT Indicators Database - International Telecommunication Union (ITU), via World Bank (2026) – with major processing by Our World in Data
- [Fertility rate](/sources/fertility): UN, World Population Prospects (2024) – processed by Our World in Data
- [Obesity among adults, BMI \>= 30 kg/m2 (crude estimate) (%) - Sex: both sexes - Age group: 18+  years of age](/sources/adult-obesity): World Health Organization – Global Health Observatory (2026) – with minor processing by Our World in Data

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