Year	sq. km
1961	2724902
1962	2724902
1963	2724902
1964	2724902
1965	2724902
1966	2724902
1967	2724902
1968	2724902
1969	2724902
1970	2724902
1971	2724902
1972	2724902
1973	2724902
1974	2724902
1975	2724902
1976	2724902
1977	2724902
1978	2724902
1979	2724902
1980	2724902
1981	2724902
1982	2724902
1983	2724902
1984	2724902
1985	2724902
1986	2724902
1987	2724902
1988	2724902
1989	2724902
1990	2724902
1991	2724902
1992	2724902
1993	2724902
1994	2724902
1995	2724902
1996	2724902
1997	2724902
1998	2724902
1999	2724902
2000	2724902
2001	2724902
2002	2724902
2003	2724902
2004	2724902
2005	2724902
2006	2724902
2007	2724902
2008	2724902
2009	2724902
2010	2724902
2011	2724902
2012	2724902
2013	2724902
2014	2724902
2015	2724902
2016	2724902
2017	2724902
2018	2724902
2019	2724902
2020	2724900
2021	2724900