List of Congresses
- 18th - 2011 New Zealand
- 17th - 2009 USA
- 16th - 2007 Ireland (includes photo summary)
- 15th - 2005 Brazil (includes photo summary)
- 14th – 2003 Western Australia (includes photo summary)
- 13th - 2002 The Netherlands (includes photo summary)
- 12th - 1999 South Africa
- 11th - 1997 Canada
- 10th - 1995 United Kingdom
- 9th – 1993 Hungary
- 8th – 1991 New Zealand
- 7th – 1988 Denmark
- 6th – 1986 USA – St Paul, Minnesota
- 5th – 1983 Kenya – Nairobi
- 4th – 1980 Israel – Jerusalem
- 3rd – 1977 Germany – Hamburg
- 2nd – 1974 Canada – Guelph
- 1st – 1971 United Kingdom - Warwick