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32 9 33 0 33 1 33 2 33 3 33 4 33 5 33 6 33 7 33 8 33 9 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988

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