Illegal immigration to Ghana work permit, fake Ghana Card, fake UN Cards, stateless people as well as those born in Ghana by illegal immigrants. In 2010, it was estimated by the Ghanaian government that there were 3.1 million aliens and that the number of illegal immigrants was as high as 3.1 million in both South and North Ghana, including refugees. The nations home to the highest percentages of the illegal immigrant population were Nigeria, Burkina Faso, Mali, Togo, Ivory Coast, Benin, Liberia, Niger, and Cameroon. From a little over 3,000,000 as at 1952/53 Ghana population had steadily grown to nearly 6,000,000 between 1957 and
Benin standard of measurement for the 10% target. Benin has the third-highest publication intensity for scientific journals in West Africa, according to Thomson Reuters' Web of Science, Science Citation Index Expanded. There were 25.5 scientific articles per million inhabitants cataloged in this database in 2014. This compares with 65.0 for the Gambia, 49.6 for Cape Verde, 23.2 for Senegal and 21.9 for Ghana. The volume of publications in this database tripled in Benin between 2005 and 2014 from 86 to 270. Between 2008 and 2014, Benin's main scientific collaborators were based in France (529 articles), United States (261), United Kingdom (254),