Precisely, there are no statistics from 2016, they published the old information. And if the statistics are done like in France, they aren't even allowed to no

Precisely, there are no statistics from 2016, they published the old information. And if the statistics are done like in France, they aren't even allowed to note which religion the suspect has, so some simple statistics that would give such a relation are by definition not possible to make. On one side, it's true, the free society is not supposed to look in the people's heads. On another side, if the perpetrators explicitly tell you why they do what they do, it's really, really wrong discarding that information. The policies that disallow the access to the non-biased facts are serious limitation in more than one land. As an example in the US, there's this 2001 "Guideline" for the "professional journalists": http://www.spj.org/divguidelines.asp http://www.spj.org/divguidelines.asp