As of summer 2009, China’s installed capacity of wind generation was 14,740 MW nationwide, 5000 MW of which was said not to be grid-connected. The non-grid connected wind power amounts to approximately 50 billion Yuan in capital investment (or ~$7.4 billion U.S.). The June 2010 estimates are that 16,000 MW of wind power is now grid connected out of a total estimated installed capacity of at least 25,000 MW.
China had a 2007 goal of having 30,000 MW of installed wind capacity in China as of 2020 and the new goal is 150,000 MW.
Wikipedia has coverage of wind power by country