All data and visualizations on Our World in Data rely on data sourced from one or several original data providers. Preparing this original data involves several processing steps. Depending on the data, this can include standardizing country names and world region definitions, converting units, calculating derived indicators such as per capita measures, as well as adding or adapting metadata such as the name or the description given to an indicator.
At the link below you can find a detailed description of the structure of our data pipeline, including links to all the code used to prepare data across Our World in Data.
To cite this page overall, including any descriptions, FAQs or explanations of the data authored by Our World in Data, please use the following citation:
In-line citationIf you have limited space (e.g. in data visualizations), you can use this abbreviated in-line citation:
Full citation
Help us do this work by making a donation.
Our World in Data is a project of Global Change Data Lab, a nonprofit based in the UK (Reg. Charity No. 1186433). Our charts, articles, and data are licensed under CC BY, unless stated otherwise. Tools and software we develop are open source under the MIT license. Third-party materials, including some charts and data, are subject to third-party licenses. See our FAQs for more details.

source