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Migration

Given the often unstable situation in the country and the condition of state structures, it is extremely difficult to obtain reliable migration data. However, evidence suggests that DRC continues to be a destination country for immigrants, in spite of recent declines in their numbers. Immigration is very diverse in nature; refugees and asylum-seekers – products of the numerous and violent conflicts in the Great Lakes Region – constitute an important subset of the population. Additionally, the country's large mine operations attract migrant workers from Africa and beyond. There is also considerable migration for commercial activities from other African countries and the rest of the world, but these movements are not well studied. Transit migration towards South Africa and Europe also plays a role.

Immigration to the DRC has decreased steadily over the past two decades, most likely as a result of the armed violence that the country has experienced. According to the International Organization for Migration, the number of immigrants in the DRC has fallen from just over one million in 1960, to 754,000 in 1990, to 480,000 in 2005, to an estimated 445,000 in 2010. Official figures are unavailable, partly due to the predominance of the informal economy in the DRC. Data are also lacking on irregular immigrants, however given neighbouring countries' ethnic links to DRC nationals, irregular migration is assumed to be a significant phenomenon.

Figures for Congolese nationals abroad vary greatly depending on the source, from three to six million. This discrepancy is due to a lack of official, reliable data. Emigrants from the DRC are above all long-term emigrants, the majority of whom live in Africa and to a lesser extent in Europe; 79.7% and 15.3% respectively, according to estimated 2000 data. New destination countries include South Africa and various points en route to Europe. The DRC has produced a considerable number of refugees and asylum-seekers located in the region and beyond. These numbers peaked in 2004 when, according to UNHCR, there were more than 460,000 refugees from the DRC; in 2008, Congolese refugees numbered 367,995 in total, 68% of whom were living in other African countries.

Since 2003, more than 400,000 Congolese migrants have been expelled from Angola.