Year	Square Kilometers
1961	41530
1962	41530
1963	41530
1964	41530
1965	41530
1966	41530
1967	41530
1968	41530
1969	41530
1970	41530
1971	41530
1972	41530
1973	41530
1974	41530
1975	41530
1976	41530
1977	41530
1978	41530
1979	41530
1980	41530
1981	41530
1982	41530
1983	41530
1984	41530
1985	41530
1986	41530
1987	41530
1988	41530
1989	41530
1990	41530
1991	41530
1992	41530
1993	41530
1994	41530
1995	41530
1996	41530
1997	41530
1998	41530
1999	41530
2000	41530
2001	41530
2002	41530
2003	41530
2004	41530
2005	41540
2006	41540
2007	41540
2008	41540
2009	41540
2010	41540
2011	41540
2012	41540
2013	41540
2014	41540
2015	41540
2016	41540
2017	41540