(Go me. I'm half asleep, was interrupted due to people ringing me up like half my family trying to figure out where one of my sisters is at the moment.)

The reporting figure's a bit odd, because of some cultural expectations which more or less suggest that you simply don't talk about it.

It's a sort of absurd claim that Japan, unlike everyone else, likes to keep these sorts of incidents quiet. (Not quite true, because well, that's a tendency all around the world to keep it in the family as it were.)

Part of it of course is the fact such a crime is a serious allegation, and most of these cases turn out to be one party's word (Like the child) versus the accused.

It's messy like that, because a significant amount of cases really do amount to the above, and well, having some kid rock the boat on some claim (true or not) is usually frowned upon only cause, well, it's difficult to prove, and can basically cause huge dramas.

From my knowledge, the Japanese are less likely to raise potentially risky issues like that, on what amounts to a maybe, which isn't noted in most reports though.