• Atlanta, GA: 2017​

  • Long Beach, CA: 2016​

  • Denver, CO: 2015​

  • ​​New Orleans, LA: 2014​

  • Charlotte, NC: 2013

  • Scottsdale, AZ: 2012

  • Chicago, IL: 2011​

  • Louisville, KY: 2010

  • St. Louis, MO: 2009

  • Ottawa, Ontario: 2008

  • Philadelphia, PA: 2007

  • Chicago, IL: 2006

  • Austin, TX: 2005

  • Kansas City, MO: 2004

  • Portland, OR: 2003

  • Saint Paul, MN: 2002

  • Durham, NC: 2001

  • Berkeley, CA: 2000

  • Chicago, IL: 1999

  • Leesburg, VA: 1998

  • Boston, MA: 1997

  • Denver, CO: 1996

  • Nashville, TN: 1995

  • Pittsburgh, PA: 1994

  • Vancouver, BC: 1993

  • Dallas, TX: 1992

  • Toronto, ON: 1991

  • Evanston, IL: 1990

  • Columbus, OH: 1989

  • Wilmore, KY: 1988

  • Berkeley, CA: 1987

  • Kansas City, KS: 1986

  • Madison, NJ: 1985

  • Holland, MI: 1984

  • Richmond, VA: 1983

  • Toronto, ON: 1982

  • St. Louis, MO: 1981

  • Denver, CO: 1980

  • New Brighton, MN: 1979

  • Latrobe, PA: 1978

  • Vancouver, BC: 1977

  • Grand Rapids, MI: 1976

  • S. Hamilton, MA: 1975

  • Denver, CO: 1974

  • Bethlehem, PA: 1973

  • Waterloo, ON: 1972

  • Pasadena, CA: 1971

  • New Orleans, LA: 1970

  • Pittsburgh, PA: 1969

  • St. Louis, MO: 1968

  • Chicago, IL: 1967

  • Louisville, KY: 1966

  • New York, NY: 1965

  • Kansas City, MO: 1964

  • Mill Valley, CA: 1963

  • Hartford, CT: 1962

  • Washington, DC: 1961

  • St. Paul, MN: 1960

  • Toronto, ON: 1959

  • Boston, MA: 1958

  • Fort Worth, TX: 1957

  • Berkeley, CA: 1956

  • New York, NY: 1955

  • Chicago, IL: 1954              

  • Evanston, IL: 1953

  • Louisville, KY: 1952

  • Rochester, NY: 1951

  • Columbus, OH: 1950

  • Chicago, IL: 1949

  • Dayton, OH: 1948

  • Louisville, KY: 1947

​​​