I imagine that most people got the mental picture.  Your (admittedly rough) mockup seems to be lacking the slider bar extending down into the depths of hell

For my part, I like the real-estate and graphical-mind-friendly layout of Bitcoinity.org's chart efforts.  I especially like that so far the guy has managed to run it on donations vs. having a lot of ads.

As someone else mentioned, how about just going to ClarkMoody when one wants the tabular data?  This is what I do.

Of course if resources allow it probably would be pretty doable to give users the option.

(...or would it?  Since 2011 I've sensed that the collection and aggregation of the data works a little bit differently in bitcoinity.org than it does in other ticker implementations.  And that that leads to increased reliability in at some times and decreased reliability in other areas.  I could be wrong about this though.)