If you take a peek in this thread (that Shaun closed for some reason), you’ll see that Mint destroys most data after either 25mb or five weeks for performance reasons. This is totally understandable.
However, could a Pepper not be written that keeps this old data, but only as static references? So for example, rows older than five weeks could be added to a static HTML version of the old stats (ie: just the stripes), then be included onto the bottom of the normal dynamic stats; this static HTML list could potentially be cut into separate files to further good performance. This data could then be cycled through with a little button at the bottom of each pane, as I suggested in the thread above.
When it comes to statistics, having historical data is an absolute necessity in my opinion and I was really surprised when I found out that Mint doesn’t offer it beyond monthly figures; the “It’s a fresh look!” line still doesn’t wash with me. If free stats solutions that’re out there can manage it, why can’t the premium rate Mint?
Just brainstorming, anyway. I am by no means a programmer so if what I’ve suggested above is infeasible then shoot me, but it seems like it could work with some loving to me. :D