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Source: Australian data are from Government of Australia, Australian Bureau of Statistics and refer to 1996, 2001, 2006; Canadian data are from Statistics Canada and refer to 1996 and 2001; Norway's data are from Statistics Norway; US data are from 1995 Current Population Survey, 2000 Census, and 2006 American Community Survey; Data for the remaining countries are from Table A.1.4 in SOPEMI (Systeme d'Observation Permanente des Migrations), 2006 and 2007, Trends in International Migration (Rome: OECD). |