International Migration Report 2009

A Global Assessment

image of International Migration Report 2009

This report presents information on international migration levels, trends and legal instruments for major areas, regions and countries of the world. The data for the international migrant stock are taken from the publication Trends in International Migrant Stock: The 2008 Revision. The estimates on the total population, net migration and the projected population up to 2050 are based on World Population Prospects: The 2008 Revision. For the first time, data on international migration flows for a selected group of countries are included in the analysis. The data come from the dataset International Migration Flows to and from Selected Countries: The 2008 Revision. The analysis of the ratification status of migration-related legal instruments for Member States of the United Nations and the International Labour Organization (ILO) is based on information from the United Nations Treaty Section which can be accessed at treaties.un.org.



Definitions and sources

Total (thousands): The estimated total number of international migrants, both sexes combined, as of 1 July of the years indicated, in thousands. The basic data used to estimate the number of international migrants was obtained mostly from population censuses. For 179 countries or areas, the estimate shown corresponds to the number of persons born in a country other than that in which they lived, that is, the foreign-born population. For a further 42 countries or areas where information on place of birth was not available, the estimate shown corresponds to the number of foreigners. For the remaining 9 countries or areas, no information on the number of foreign-born or foreign persons was available; the estimates were imputed using a model.


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