2025 - Newport Beach, CA 2024 - Hong Kong
2023 - New York City, New York
2021 - Virtual; Ann Arbor, Michigan
2019 - Burlington, Vermont
2017 - San Francisco, California
2015 - Boston, Massachusetts
2014 - Beijing, China
2013 - Ann Arbor, Michigan
2010 - Chapel Hill, North Carolina
2007 - Baltimore, Maryland
2005 - Albuquerque, New Mexico
2004 - San Francisco, California
2003 - Boston, Massachusetts
2002 - Seattle, Washington
2001 - Minneapolis, Minnesota
2000 - Baltimore, Maryland
1999 - Irvine, California
1998 - Stanford, California
1997 - Bethesda, Maryland
1995 - Washington, DC
1994 - Georgetown, Maryland
1993 - Rockville, Maryland