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61 49 3 61 49 4 61 49 5 61 49 6 61 49 7 61 49 8 61 49 9 61 50 0 61 50 1 61 50 2 61 50 3 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995

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