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