Date
|
Location
|
Series
|
2018
|
Bonn, Germany
|
XVIII
|
2015
|
Piracicaba, Brazil
|
XVII
|
2012
|
Hämeenlinna, Finland
|
XVI
|
2009
|
Madison, Wisconsin, USA
|
XV
|
2005
|
Belfast, Northern Ireland, UK
|
XIV
|
2002
|
Auchincruive, Scotland, UK
|
XIII
|
1999
|
Uppsala, Sweden
|
XII
|
1996
|
Aberystwyth, Wales, UK
|
XI
|
1993
|
Dublin, Ireland
|
X
|
1990
|
Newcastle, UK
|
IX
|
1987
|
Hurley, UK
|
VIII
|
1984
|
Belfast, Northern Ireland, UK
|
VII
|
1981
|
Edinburgh, Scotland, UK
|
VI
|
1978
|
Ayr, Scotland, UK
|
V
|
1976
|
Hurley, UK
|
IV
|
1974
|
Edinburgh, Scotland, UK
|
III
|
1972
|
Hurley, UK
|
II
|
1970
|
Edinburgh, Scotland, UK
|
I
|