Share of deaths that are registered
Related research and writing
Frequently Asked Questions
The total number of deaths expected each year can be estimated using data from censuses, surveys and other data sources about the size of the population by age, sex and other demographics. For example, they can be estimated using historical trends and registered deaths. In addition, countries carry out censuses, usually around every ten years.
Researchers can compare people in one census and the next, and look at their year of birth, to estimate how many people in that birth cohort died in between censuses. This can help project the number of deaths each year by age and other demographics.
Different groups use slightly different methods to estimate the total number of expected deaths each year, but their estimates are mostly similar. Estimates vary more widely for countries with poorly functioning Vital Registries. This dataset by Ariel Karlinsky uses an average of estimates from three sources: the UN's World Population Prospects, WHO's Global Health Estimates and IHME's Global Burden of Disease study.
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This data is based on the following sources
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