Basic User Analytics

Hi

we have an installation with several hundreds of users and projects and we would like, as Admin of course, be able to deliver some statistics for the management, For instance, we would like to know the users, groups (named users, but at the beginning unknown) having the most repositories and how big those repositories are. This kind of information would allow us to identify the key users of the instance. I know there is the API and Rails console at disposal but since the time is running out I was looking for a gentle soul already having gone through this kind of introspection and willing to share its results…

The API needs a token and mainly provides information once one provides a project or group ID and thus would need to many steps before getting some tangible results.

thanks