➡ From Child Welfare Information Gateway NJ:
International: Migration: Key findings from the U.S., Europe and the world
Pew Research Center – December 15, 2016
If all of the world’s international migrants (people living in a country that is different from their country or territory of birth) lived in a single country, it would be the world’s fifth largest, with around 244 million people. Overall, international migrants make up 3.3% of the world’s population today.
http://www.pewresearch.org/fact-tank/2016/12/15/international-migration-key-findings-from-the-u-s-europe-and-the-world/