August 25-29, 2010 Yinchuan
November 27-29, 2009 Shenzhen		April 16-19, 2008 Changsha
September 20-23, 2006 Qingdao		October 12-16, 2005 Zhengzhou
October 14-16, 2004 Chongqing		October 21-23, 2002 Taiwan
October 15-17, 2001 Hong Kong		October 16-18, 2000 Beijing