Notes: Data are from population registers or from registers of foreigners except for Greece (census), Ireland and United Kingdom (Labour Force Survey).

Source: OECD, Trends in International Migration (2006) and International Migration Outlook (2011). More data tables are available online at http://www.oecd.org/document/40/0,3746,en_2649_37415_48303528_1_1_1_37415,00.html