I'm not a statistician, but have taken a class or two. Anytime you see a graph that looks like a square wave on a o-scope, it's usually a "Houston we got a problem" moment. Numbers have to be rechecked and verified (by more than one set of eyes/brains).

Olddude I agree with you for the most part, China is smack in the middle of most market conditions. They and We have problems, they much more than us (USA).