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47 6 47 7 47 8 47 9 48 0 48 1 48 2 48 3 48 4 48 5 48 6 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989

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