That's the problem with China. The official data is nonsense, and the estimates of outsiders can change without warning. Here are some links:
China Official Stats 1
China Official Stats 2
China Official Stats 3
More China Stats
OECD
CIA
World Bank 1
World Bank 2
IMF
CMF
Changing Stats 1
Changing Stats 2
Changing Stats 3 - Copper
Changing Stats 4 - Copper
Here are some old charts that might help:


I've been trying to track China for a long time. The first problem is the lack of real data, but the second problem is that China is a communist country. They don't have to bow to market forces, and they can do some really bizarre things (long term and short term). They have a lot of situations/policies that aren't sustainable, but it's hard to even guess which path(s) they may take to keep things calm. The only thing an outsider can do is watch and wait.
Edit 1 =================================================
Oops, I forgot some links and one image:
Autos 1
Autos 2
Housing 1
Housing 2
