Use the form below for corrections, data questions, press and republishing, or partnership enquiries.
If a figure looks wrong, tell us. Include the page, the country, and the number you'd expect, and we'll check it against the source. Every figure here traces back to the World Bank or the WHO, so corrections usually come down to a vintage or a definition — and if we've made an error, we'll fix it and say so.
The rankings are free to republish with attribution to the National Death Index and to the underlying source we cite. Every ranking and comparison has a CSV download if you'd rather work with the raw numbers. If you'd like a specific cut of the data, or a measure we don't yet publish, ask — it's often a quick addition.
Questions about how a number is built are answered on the methodology and data sources pages first; if those don't cover it, send the question through the form.