The empirical analysis of migration flows suffers from a lack of reliable data.
Thanks to the collection and extension of over 1,000 censuses and population registers, the authors have constructed global origin/destination matrices of bilateral migrant flows for 226 countries/regions at 10-year intervals over the period 1960-2000.
These data reveal an increase in global migrant numbers from 92 million people to 165 million people between 1960 and 2000, a dominance of South-South migration, the US remaining the most important migration destination in the world, and the proportion of women in global migration has increased.
Data base : https://datacatalog.worldbank.org/dataset/global-bilateral-migration-database
Version : 2011-01-01
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World Bank