2017
Washington, DC
September 14 – September 17
2016
Baltimore, MD
April 28 – May 2
2015
San Diego, CA
April 24 – April 28
2014
Vancouver, BC, Canada
May 2 – May 6
2013
Washington, DC
May 3 – May 6
2012
Boston, MA
April 26 – April 27
2011
Denver, CO
April 29 – May 2
2010
Vancouver, BC, Canada
May 1 – May 4
2009
Baltimore, MD
May 2 – May 3
2008
Honolulu, HI
May 2 – May 5
2007
Toronto, ON, Canada
May 4 – May 7