| XXIII |
ROME 1988/89 | (28 Dec-1 Jan) |
| XXIV |
MAASTRICHT 1990 | (5-8 Jul) |
| XXV |
SALAMANCA 1991 | (10-14 Jul) |
| XXVI |
ROME 1993/94 | (28 Dec-1 Jan) |
| XXVII |
MONTREAL 1995 | (30 Jun-7 Jul) |
| XXVIII |
SALZBURG 1996 | (10-14 Jul) |
| XXIX |
BARCELONA 1998 | (7-12 Jul) |
| XXX |
ROME 1999/2000 | (28 Dec-1 Jan) |
| XXXI |
LYON 2002 | (10-15 Jul) |
| XXXII |
COLOGNE 2004 | (14-18 Jul) |
| XXXIII |
ROME 2005/06 | (28 Dec-1 Jan) |
| XXXIV |
CRACOW 2007 | (10-15 Jul) |
| XXXV |
STOCKHOLM 2009 | (8-12 Jul) |
| XXXVI |
ROME 2010/11 | (28 Dec-1 Jan) |
| XXXVII |
GRANADA 2012 | (11-15 Jul) |
| XXXVIII |
WASHINGTON 2013 | (3-7 Jul) |
| XXXIX |
PARIS 2014 | (9-13 Jul) |
| XL |
ROME 2015/16 | (28 Dec-1 Jan) |
| XLI |
RIO DE JANEIRO 2017 | (18-23 Jul) |
| XLII |
BARCELONA 2018 | (11-15 Jul) |
| XLIII |
FLORENCE 2022 | (13-17 Jul) |
| XLIV |
ROME 2023/24 | (28 Dec-1 Jan) |
| XLV |
MUNICH 2025 | (16-20 Jul) |
| XLVI |
MALAGA 2027 | (14-18 Jul) |