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12 62 12 63 12 64 12 65 12 66 12 67 12 68 12 69 12 70 12 71 12 72 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997

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