Between 1990 and 2013 the USA added 23 million international migrants (flows) to its population; the second highest gain (7 million) was the United Arab Emirates. The World Bank identifies four...

Between 1990 and 2013 the USA added 23 million international migrants (flows) to its population; the second highest gain (7 million) was the United Arab Emirates. The World Bank identifies four pathways for international migration, as the figure shows. The figures in brackets indicate stocks of international migrants in 2013.