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36 69 36 70 36 71 36 72 36 73 36 74 36 75 36 76 36 77 36 78 36 79 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003

= Free Coordinate    = Occupied(Single Region)     = Occupied (Var Region)     = Center of the grid