Another way to gauge China's problem is that its gross domestic product (GDP) quintupled over the decade through 2010, while its stock market doubled - so that market capitalization has fallen sharply relative to GDP.
Via. I don't agree with everything else in the article, but this is another data point indicating that the rise of China may not yet be as impressive as many have thought.
Also this (which I would have guessed): "U.S. Leadership Approval Ratings Top China's in Asia". (ht: Phil Arena.)