GapChart: hybrid visualization technique to follow gaps in ranking

mister Red & Mr Blue & Mr Green

2013 - 2014

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2011 - 2012

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2012 - 2013

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2009 - 2010

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2010 - 2011

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2007 - 2008

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2008 - 2009

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2005 - 2006

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2006 - 2007

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