http://publications.iom.int/system/files/pdf/global_migration_indicators_2018.pdf
https://www.politico.eu/newsletter/brussels-playbook/weber-calls-on-tunisia-to-bring-down-migrant-numbers/
https://www.un.org/esa/population/publications/migration/migration.htm
https://www.brookings.edu/blog/order-from-chaos/2018/07/31/its-time-for-the-united-states-and-europe-to-face-the-politics-of-cultural-displacement/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=64909281