| Year |
Number |
City/Country |
| 1948 |
I |
Brussels, Belgium |
| 1949 |
II |
Paris, France |
| 1950 |
III |
Arnhem, The Netherlands |
| 1951 |
IV |
Luxembourg |
| 1952 |
V |
Strasbourg, France |
| 1953 |
VI |
Bad Nauheim, Germany |
| 1954 |
VII |
Amsterdam, The Netherlands |
| 1955 |
VIII |
Liege, Belgium |
| 1956 |
IX |
Paris-Vincennes, France |
| 1957 |
X |
Luxembourg |
| 1958 |
XI |
Brussels, Belgium |
| 1959 |
XII |
Copenhagen, Denmark |
| 1960 |
XIII |
Rotterdam, The Netherlands |
| 1961 |
XIV |
Athens, Greece |
| 1962 |
XV |
Rome, Italy |
| 1963 |
XVI |
Luxembourg |
| 1964 |
XVII |
Antwerp, Belgium/Breda, The Netherlands |
| 1965 |
XVIII |
Copenhagen, Denmark |
| 1966 |
XIX |
Munich, Germany |
| 1967 |
XX |
Trieste, Italy |
| 1968 |
XXI |
Paris-Versailles, France |
| 1969 |
XXII |
Breda, The Netherlands |
| 1970 |
XXIII |
NATO, Brussels, Belgium |
| 1971 |
XXIV |
Hannover, Germany |
| 1972 |
XXV |
Washington, DC, United States |
| 1973 |
XXVI |
Rome, Italy |
| 1974 |
XXVII |
Oslo, Norway |
| 1975 |
XXVIII |
Athens, Greece |
| 1976 |
XXIX |
Copenhagen, Denmark |
| 1977 |
XXX |
London, United Kingdom |
| 1978 |
XXXI |
Bonn, Germany |
| 1979 |
XXXII |
Avignon, France |
| 1980 |
XXXIII |
Montreal, Canada |
| 1981 |
XXXIV |
The Hague, The Netherlands |
| 1982 |
XXXV |
Washingon, DC, United States |
| 1983 |
XXXVI |
Brussels, Belgium |
| 1984 |
XXXVII |
Rome, Italy |
| 1985 |
XXXVIII |
Oslo, Norway |
| 1986 |
XXXIX |
Athens, Greece |
| 1987 |
XL |
Copenhagen, Denmark |
| 1988 |
XLI |
London, United Kingdom |
| 1989 |
XLII |
Wurzburg, Germany |
| 1990 |
XLIII |
Calgary, Canada |
| 1991 |
XLIV |
Paris, France |
| 1992 |
XLV |
Breda, The Netherlands |
| 1993 |
XLVI |
Washington, DC, United States |
| 1994 |
XLVII |
Leuven, Belgium |
| 1995 |
XLVIII |
Rome, Italy |
| 1996 |
XLIX |
Lillehammer, Norway |
| 1997 |
L |
Aalborg, Denmark |
| 1998 |
LI |
Brighton, United Kingdom |
| 1999 |
LII |
Athens, Greece |
| 2000 |
LIII |
Berlin, Germany |
| 2001 |
LIV |
Madrid, Spain |
| 2002 |
LV |
Strasbourg, France |
| 2003 |
LVI |
Maastricht, The Netherlands |
| 2004 |
LVII |
Vienna, Austria |
| 2005 |
LVIII |
Gent, Belgium |
| 2006 |
LIX |
Viterbo, Italy |
| 2007 |
LX |
Riga, Latvia |
| 2008 |
LXI |
Istanbul, Turkey |
| 2009 |
LXII |
Sofia, Bulgaria |
| 2010 |
LXIII |
Stavanger, Norway |
| 2011 |
LXIV |
Warsaw, Poland |
| 2012 |
LXV |
Copenhagen, Denmark |
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