CDW-2, 1997, Stanford University, USA

CDW-3, 1998, Tokyo, Japan

CDW-4, 1999, Albuquerque, USA

CDW-5, 2000, Paris, France

CDW-6, 2001, Tokyo, Japan

CDW-7, 2002, Maui, USA

CDW-8, 2003, Zaragoza, Spain

CDW-9, 2004, Shanghai, China

CDW-10, 2005, Seattle, USA

CDW-11, 2006, Jeju Island, Korea

CDW-12, 2007, St. Maximin, France

CDW-13, 2008, Singapore