For any non-swedes who may be interested enough to follow this: BRÅ is the "Swedish National Council for Crime Prevention". The are tasked with doing research on crime and how to prevent it.
Meanwhile, this particular authorithy actually published new stats recently. For example:
Over the past three years 1.7% of the population of Sweden reported they were subject to sexual crimes. During the period 2005-2012 this number was relatively stable at around 1%. So we are talking about a 70% increase in just a few years.
The most obvious thing that changed during these three years? Massive, historically unsurpassed immigration levels from Africa/The Middle-East.
https://www.bra.se/bra/brott-och-statistik/valdtakt-och-sexu...
(The graph there is quite telling.)