Year	sq. km
1961	566730
1962	566730
1963	566730
1964	566730
1965	566730
1966	566730
1967	566730
1968	566730
1969	566730
1970	566730
1971	566730
1972	566730
1973	566730
1974	566730
1975	566730
1976	566730
1977	566730
1978	566730
1979	566730
1980	566730
1981	566730
1982	566730
1983	566730
1984	566730
1985	566730
1986	566730
1987	566730
1988	566730
1989	566730
1990	566730
1991	566730
1992	566730
1993	566730
1994	566730
1995	566730
1996	566730
1997	566730
1998	566730
1999	566730
2000	566730
2001	566730
2002	566730
2003	566730
2004	566730
2005	566730
2006	566730
2007	566730
2008	566730
2009	566730
2010	566730
2011	566730
2012	566730
2013	566730
2014	566730
2015	566730
2016	566730
2017	566730
2018	566730
2019	566730
2020	566730
2021	566730