Year	sq. km
1961	743532
1962	743532
1963	743532
1964	743532
1965	743532
1966	743532
1967	743532
1968	743532
1969	743532
1970	743532
1971	743532
1972	743532
1973	743532
1974	743532
1975	743532
1976	743532
1977	743532
1978	743532
1979	743532
1980	743532
1981	743532
1982	743532
1983	743532
1984	743532
1985	743532
1986	743532
1987	743532
1988	743532
1989	743532
1990	743532
1991	743532
1992	743532
1993	743532
1994	743532
1995	743532
1996	743532
1997	743532
1998	743532
1999	743532
2000	743532
2001	743532
2002	743532
2003	743532
2004	743532
2005	743532
2006	743532
2007	743532
2008	743532
2009	743532
2010	743532
2011	743532
2012	743532
2013	743532
2014	743532
2015	743532
2016	743532
2017	743532
2018	743532
2019	743532
2020	743532
2021	743532