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January 1990
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Hong Kong
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January 1991
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Boston MA, USA
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January 1992
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Rio de Janeiro, Brazil
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January 1993
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Paris, France
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January 1994
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Sydney, Australia
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January 1995
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Seoul, Korea
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January 1996
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San Franciso CA, USA
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August 1996
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Pretoria and Kruger Park, South Africa
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July 1997
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Łódź, Poland
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July 1998
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Dover Convention Center, Barbados
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July 1999
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Tallinn, Estonia
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August 2000
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London, England
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July 2001
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Las Vegas Nevada USA
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July 2002
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Lisbon, Portugal
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July 2003
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Mexico City, Mexico
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July 2004
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Cairo, Egypt
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July 2005
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Santiago, Chile
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July 2006
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Beijing, China
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July 2007
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Berlin, Germany
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