June 17-18, 2013 
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| June 11-12, 2012
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June 27-28, 2011
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May 31-Jun 1, 2010
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| June 8-9, 2009
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May 11-15, 2009 
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October 6-7, 2008
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May 18-22, 2008
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October 1-2, 2007
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Sepember 18-20, 2006
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May 7-11, 2006
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April 3-4, 2006
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September 26-27, 2005
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February 28 - March 2, 2005
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October 18, 2004
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September 13-14, 2004
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April 19, 2004
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January 26, 2004
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December 8, 2003
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October 20, 2003
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April 28, 2003
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February 3, 2003
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October 28, 2002
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September 19-20, 2002
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June 24, 2002
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April 22, 2002
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February 4, 2002
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November 8-9, 2001
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June 25, 2001
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April 30, 2001
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January 29, 2001
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November 6-7, 2000
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June 26, 2000
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April 17, 2000
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January 31, 2000
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September 23-24, 1999
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June 14, 1999
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April 16, 1999
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January 29, 1999
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November 9-10, 1998
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June 29, 1998
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April 27, 1998
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January 26, 1998
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October 20-21, 1997
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July 7, 1997
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April 21, 1997
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January 27, 1997
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November 1, 1996
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July 8, 1996
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April 22, 1996
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January 29, 1996
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