April 11, 1994            San Francisco, CA
March 20, 1995         Toronto, Canada
April 22, 1996           Washington, DC
April 14, 1997           San Diego, CA
March 30, 1998         New Orleans, LA
April 12, 1999            Philadelphia, PA
April 3, 2000              San Francisco, CA
2001                          New Orleans, LA
2002                          San Francisco, CA
2003                          Washington, 
March 28, 2004         Orlando, FL
April 2005                  Washington, DC
2006                          Orange County, CA
April 16, 2007           Los Angeles, CA
April 14, 2008           San Diego, CA
April 20, 2009           Denver, CO
April 19, 2010           Washington, DC