-
1987,
Initial Duck meeting
-
1988,
2nd Duck meeting
-
1989, 1st Annual Conference
-
1990, 2nd Annual Conference
-
1991, 3rd Annual Conference
-
1992, 4th Annual Conference
-
1993, 5th Annual Conference
-
1994, 6th Annual Conference
-
1995, 7th Annual Conference
-
1996, 8th Annual Conference
-
1997, 9th Annual Conference
-
1998, 10th Annual Conference
-
1999, 11th Annual Conference
-
2000, 12th Annual Conference
-
2001, 13th Annual Conference
-
2002, 14th Annual Conference
-
2003, 15th Annual Conference
-
2004, 16th Annual Conference
-
2005, 17th Annual Conference
-
2006, 18th Annual Conference
-
2007, 19th Annual Conference
-
2008, 20th Annual Conference
-
2009, 21st Annual Conference
-
2010, 22nd Annual Conference
-
2011, 23rd Annual Conference