Year	Square Kilometers
1961	462840
1962	462840
1963	462840
1964	462840
1965	462840
1966	462840
1967	462840
1968	462840
1969	462840
1970	462840
1971	462840
1972	462840
1973	462840
1974	462840
1975	462840
1976	462840
1977	462840
1978	462840
1979	462840
1980	462840
1981	462840
1982	462840
1983	462840
1984	462840
1985	462840
1986	462840
1987	462840
1988	462840
1989	462840
1990	462840
1991	462840
1992	462840
1993	462840
1994	462840
1995	462840
1996	462840
1997	462840
1998	462840
1999	462840
2000	462840
2001	462840
2002	462840
2003	462840
2004	462840
2005	462840
2006	462840
2007	462840
2008	462840
2009	462840
2010	462840
2011	462840
2012	462840
2013	462840
2014	462840
2015	462840
2016	462840
2017	462840