#Crime is a perennial problem. A lot of blame is being laid on groups in society. But there's one number you never see in these discussions.

What percentage of everyone is a criminal?

It's a single-digit percentage. Grab 100 random people in Sweden: 3 of them are criminals.

But there are in fact groups that have a higher percentage, though still low. Here are some strongly correlated factors.

* Poor
* Young
* Men
* With short education