Maybe I'm the problem with edw... I don't see any value in the graph/post itself when it lacks the standard hallmarks of quality- reason, background, explanation... Maybe I just missed the seasonal swings when I was doing my own thing, so I didn't "get" the graph like you did.

I'm sorry to have left you out of the direct accolades- I figured you'd be happy in the company of pg, of so much merit that it need not be mentioned. Your posts are consistently thoughtful, reasoned, and insightful, with an incredible signal/noise ratio. You're just smart, and you write/do/make awesome things.