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43 4 43 5 43 6 43 7 43 8 43 9 44 0 44 1 44 2 44 3 44 4 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989

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