| MMM 2021 Prague, Czech Republic | MMM 2014 Dublin, Ireland | MMM 2007 Singapore | MMM 1998 Lausanne, Switzerland |
| MMM 2020 Daejon, South Korea | MMM 2013 Huangshan, China | MMM 2006 Beijin, China | MMM 1997 Singapore |
| MMM 2019 Thessaloniki, Greece | MMM 2012 Klagenfurt, Austria | MMM 2005 Melbourne, Australia | MMM 1996 Toulouse, France |
| MMM 2018 Bangkok, Thailand | MMM 2011 Taipei, Taiwan | MMM 2003 Taipei, Taiwan | MMM 1995 Singapore |
| MMM 2017 Reykjavik, Iceland | MMM 2010 Chongqing, China | MMM 2001 Amsterdam, Netherlands | MMM 1993 Singapore |
| MMM 2016 Miami, USA | MMM 2009 Sophia-Antipolis, France | MMM 2000 Nagano, Japan | |
| MMM 2015 Sydney, Australia | MMM 2008 Kyoto, Japan | MMM 1999 Ottawa, Canada |