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.
The vast majority of undocumented migrants from Mexico were gainfully employed before they left for the United States. Thus, failure to find work at home does not seem to be the primary reason that the estimated 6.3 million undocumented migrants from Mexico have come to the U.S.
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