For the first time, Switzerland has 2 million foreigners living in its midst. As of last year, these non-Swiss – often the subject of political debate – accounted for nearly a quarter of the nation’s 8.3 million population. But just who exactly are they? These graphics offer an explanation. Switzerland has one of the highest proportions of foreigners in its midst among all nations: 24.6% in 2015. Only a few special cases, such as oil-producing nations that employ many foreigners, or city-states like Luxembourg, have even higher percentages than Switzerland.