What's wrong with this picture?

How is it that a Union morale of 3.02 displays lower on this graph than a Confederate morale of 2.96?
I'm thinking that the displayed 3.02 figure may be a bug, that the Union morale is really something else (i.e., some number less than 2.96). If not?
I've noticed this sort of thing before.
Note in the lower left corner how the Confederate flag and 0.00 overlap the Union flag and 0.00.
Would it be possible, in a future patch, to label the graph axes? With labels for each tick. Turn/time along the horizontal, morale (or whatever) along the vertical? An accurate grid, properly scaled?
Consider these additions to the wish list.