Earlier quoted context omitted.
Statistics is easily tweaked or faked. There are already many cases of police in Germany and Sweden miss-reporting or covering up sexual offences by immigrants. 1. http://www.zerohedge.com/news/2016-05-03/german-coverup-scan... 2. http://www.spectator.co.uk/2016/01/its-not-only-germany-that... 3. http://dailycaller.com/2016/04/08/german-cops-we-were-ordere...
Statistics can never simply be read from a police database or similar. It takes serious work by good researchers to compile the data and interpret it. This is also why you can't compare many crime statistics between countries, rape being a fairly typical one. The simple truth is that up until now no one actually cared and that is why it went unreported. Heck, the new years eve sexual offences will probably disappear…
Ah, yes. The data need to be "seasonally adjusted" by high priests of the state, so that we, uneducated peons get the "appropriate" message.
Do you even realize how elitist your statement is? Sexual offence data is not rocket science, a lot of people can understand it quite well.
In Sweden's case, it would also help if the race/nationality of the attacker was disclosed (which, I heard, is not allowed in Sweden).