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12 86 12 87 12 88 12 89 12 90 12 91 12 92 12 93 12 94 12 95 12 96 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999

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