&gt; per capita is a joke to use when referencing European countries considering how small they are.

Ok, I didn't vouch for the accuracy or methodology of the research. I didn't argue one way or the other on the topic. I was pointing out that the commenter I was replying to didn't even click on the link. If you have some other methodology that you prefer then feel free to suggest it. I think per capita over approximately 20 years is about as good as you're going to get for a study on this topic. These are rare events so they are always going to fluctuate.