The CLANDESTINO research project, funded by the European Commission’s DG Research fund, has published a detailed database concerned with the current situation of Irregular Migration in Europe during the 21st century (notably the Czech Republic, Austria, France, Germany, Greece, Hungary, Italy, the Netherlands, Poland, Slovakia, Spain, and the UK; but also Morocco, Turkey and Ukraine as countries experiencing „transit“ migration). The interactive tables and data, which have been issued online in order to increase transparency in this field, estimate that the range of foreign nationals residing in the European Union without a legal permit is between 2.8 and 6 million. The European Commission had originally estimated that the figure lay between 4.5 and 8 million nationals; the new project shows that the number of irregular migrants is fewer than assumed and that it is declining still further.