Migration: Ireland has the highest share of nationals living abroad of the 34 mainly developed member countries of the Organisation for Economic Cooperation and Development (OECD): more than 17% of Irish-born persons aged 15 and over, lives overseas. The share of foreign-born persons living in Ireland is also very high, reaching 20% of the total population, following a sharp increase over the years 2001 to 2011. Foreign workers typically originate from other EU member states, as they benefit from free labour movement, as well as from other English-speaking countries.