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13 40 13 41 13 42 13 43 13 44 13 45 13 46 13 47 13 48 13 49 13 50 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998

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