Year	sq. km
1961	56790
1962	56790
1963	56790
1964	56790
1965	56790
1966	56790
1967	56790
1968	56790
1969	56790
1970	56790
1971	56790
1972	56790
1973	56790
1974	56790
1975	56790
1976	56790
1977	56790
1978	56790
1979	56790
1980	56790
1981	56790
1982	56790
1983	56790
1984	56790
1985	56790
1986	56790
1987	56790
1988	56790
1989	56790
1990	56790
1991	56790
1992	56790
1993	56790
1994	56790
1995	56790
1996	56790
1997	56790
1998	56790
1999	56790
2000	56790
2001	56790
2002	56790
2003	56790
2004	56790
2005	56790
2006	56790
2007	56790
2008	56790
2009	56790
2010	56790
2011	56790
2012	56790
2013	56790
2014	56790
2015	56790
2016	56790
2017	56790
2018	56790
2019	56790
2020	56790
2021	56790