The reason Sweden seems to have the highest rape rate has everything to do with the Swedes, namely the fact that Sweden, unlike other countries, counts every act of rape seperately while other countries count one victim = one rape crime, regardles how many times the victim was raped.
So when an abusive Swedish husband keeps raping his wife on weekly bases for five years, that makes 52 x 5 = 260 rape crimes in the Swedish statistic, not one rape crime as counted by other countries. And when a Swedish hockey team gang rapes a girl, that makes x number of players = number of rape crimes, instead of one victim, one rape crime, as counted in other countries