Only one research report on immigrant crime has been published since 2000. It was conducted in 2006. Ann-Christine Hjelm of the University of Karlstads. It found that in 2002. 85% of those sentenced to at least two years in prison for rape were foreign-born or second-generation immigrants. A 1996 report by the Swedish National Crime Prevention Council concluded that immigrants from North Africa (Algeria, Libya, Morocco and Tunisia) were 23 times more likely than Swedes to commit rape. The figures for men from Iraq, Bulgaria and Romania were 20, 18 and 18, respectively. Men from other African countries were 16 times more likely to commit rape: and men from Iran, Peru, Ecuador and Bolivia were 10 times more likely than Swedes. A new trend has arrived in Sweden with full force in the past few decades: gang rape - virtually unknown before in Swedish crime history. The number of gang rapes increased spectacularly between 1995 and 2006. Since then, no studies have been conducted on the subject. Sweden: the number of foreign-born people increased from 9% of the population in 1990 to 15.4% in 2012. The number of rapes in Sweden has tripled in the last ten years as the country has become a major destination for Muslim immigrants in Europe. Writing for the Gatestone Institute, Ingrid Carlqvist and Lars Hedegaard