And why do the seven years 2004-2011 provide the "historical norms"? Regardless, it is a rather small point and I will readily agree that all six assets have b

And why do the seven years 2004-2011 provide the "historical norms"? Regardless, it is a rather small point and I will readily agree that all six assets have been falling. But arrange them vertically - or better yet, superimpose them - instead of listing them side-by-side, sorted in descending order by 2014 value and selected to dovetail together! and the story isn't nearly as clear.... Just try it. The graph is set up to tell a macro story far beyond 2 years. It looks hastily like a 12-year story of rising from 6% to a high of under 8 and falling sharply and steadily down to 3 (briefly under 2). But that's not what the graph says at all. It just looks that way visually.