Yeah, we definitely have a problem with the stats page. We've always felt cramped for space there, and that we can't expand things much.
We're working with a designer now to rework that page (and other elements of the site) to make things like this possible in the future. We also have a reporting feature sketched out on paper that would help isolate some stats based on time.
So nothing planned in the short term, but we're thinking about these things and have some cool stuff in the works.
cmittle 
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