Statistics add-on

Maybe it's just me but is there no add-on for advanced statistics in the back-end? E.g. I want to see the posts per month over time for specific forums, where did newly registered user post, which percentage of posts came from users <1 year in the forum etc...

Is anybody aware of such a tool?

Can you please post a screenshots of how you want those stats to look like and where to display them?
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