I have seen @reko post a graph of how much delegations there are total and another graphic that shows how much delegation the top recipients receive, not sure if there is a way to automatically separate bots from non bots or if you would have to go down the list but that might be a good place to start. I think we also need a way to see how many of the new users are actually new users and how many are just accounts that resteem posts and never post themselves.