See the original infographic at the Migration Data Portal here: https://migrationdataportal.org/infographic/family-migration
Infographic: UNWOMEN - Migrant domestic workers - Facts everyone should knowhttp://www.unwomen.org/en/digital-library/multimedia/2016/9/infographic-migrant-domestic-workers
Migration in West Africa is primarily a regional phenomenon, with an estimated 90% of migrants moving within the sub-region.
See for example: http://www.oecd.org/swac/ourwork/intra-regionalmobilityinwestafrica.htm
247 millions is the stock of international migrants in 2013 according the most recent estimates of the World Bank.
436 billion US$ of remittances were sent to developing countries in 2014 (+ 4.4% against 2013) …. representing about 74% of the estimated 583 billion $ global remittances
8% is the average cost for sending $200 abroad 200 $ and this average reaches 12% for Sub-Saharan Africa
2% is the estimated percentage of transfers operated through mobile technology.