Key facts about recent trends in global migration
The number of international migrants grew to 281 million in 2020; 3.6% of the world’s people lived outside their country of birth that year.
A country-by-country analysis of data from more than 2,500 censuses, surveys and population registers finds that 84% of adults and children around the globe are religiously affiliated. The study also finds that the median age of two major groups – Muslims (23 years) and Hindus (26) – is younger than the world’s overall population (28), while Jews have the highest median age (36).
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