| YEAR | LOCATION |
| 1968 | Bristol, England |
| 1969 | No symposium held |
| 1970 | Linkoping, Sweden |
| 1971 | Zurich/Lucerne, Switzerland |
| 1972 | Toulouse, France |
| 1973 | London, England |
| 1974 | Rome, Italy |
| 1975 | Munich, Germany |
| 1976 | Linkoping, Sweden |
| 1977 | Zurich, Switzerland |
| 1978 | Marignane, France |
| 1979 | Bristol, England |
| 1980 | Stresa, Italy |
| 1981 | Rottach-Egern, Germany |
| 1982 | Linkoping, Sweden |
| 1983 | Lucerne, Switzerland |
| 1984 | Salon de Provence, France |
| 1985 | Windermere, England |
| 1986 | Rome, Italy |
| 1987 | Rothenburg ob der Tauber, Germany |
| 1988 | Linkoping, Sweden |
| 1989 | Lucerne, Switzerland |
| 1990 | Arles, France |
| 1991 | Bath, England |
| 1992 | Rome, Italy |
| 1993 | Lindu, Germany |
| 1994 | Linkoping, Sweden |
| 1995 | Lucerne, Switzerland |
| 1996 | Amsterdam, Holland |
| 1997 | Aix-en-Provence, France |
| 1998 | Manchester, England |
| 1999 | Varese, Italy |
| 2000 | Regensburg, Germany |
| 2001 | Linkoping, Sweden |
| 2002 | Lucerne, Switzerland |
| 2003 | Paris, France |
| 2004 | London, England |
| 2005 | Rome, Italy |
| 2006 | Dresden, Germany |
| 2007 | Linkoping, Sweden |
| 2008 | Lucerne, Switzerland |
| 2009 | Toulouse, France |
| 2010 | Cambridge, England |
| 2011 | Venice, Italy |
| 2012 | Berlin, Germany |
| 2013 | Madrid, Spain |
| 2014 | Lulea, Sweden |
| 2015 | Lucerne, Switzerland |
| 2016 | Marseille, France |
| 2017 | Bristol, England |
| 2018 | Turin, Italy |