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17 04 17 05 17 06 17 07 17 08 17 09 17 10 17 11 17 12 17 13 17 14 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985

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