Year	sq. km
1961	9240
1962	9240
1963	9240
1964	9240
1965	9240
1966	9240
1967	9240
1968	9240
1969	9240
1970	9240
1971	9240
1972	9240
1973	9240
1974	9240
1975	9240
1976	9240
1977	9240
1978	9240
1979	9240
1980	9240
1981	9240
1982	9240
1983	9240
1984	9240
1985	9240
1986	9240
1987	9240
1988	9240
1989	9240
1990	9240
1991	9240
1992	9240
1993	9240
1994	9240
1995	9240
1996	9240
1997	9240
1998	9240
1999	9240
2000	9240
2001	9240
2002	9240
2003	9240
2004	9240
2005	9240
2006	9240
2007	9240
2008	9240
2009	9240
2010	9240
2011	9240
2012	9240
2013	9240
2014	9240
2015	9240
2016	9240
2017	9240
2018	9240
2019	9240
2020	9240
2021	9240