Year	sq. km
1961	24824710
1962	24824710
1963	24824710
1964	24824710
1965	24824710
1966	24824710
1967	24824710
1968	24824710
1969	24824710
1970	24824710
1971	24824710
1972	24824710
1973	24824710
1974	24824710
1975	24824710
1976	24824710
1977	24822590
1978	24822590
1979	24824630
1980	24824710
1981	24824710
1982	24824710
1983	24824710
1984	24824710
1985	24824710
1986	24824710
1987	24823370
1988	24823380
1989	24823380
1990	24824050
1991	24824080
1992	24824110
1993	24824130
1994	24824130
1995	24824130
1996	24824130
1997	24824130
1998	24824130
1999	24824130
2000	24821731
2001	24822101.2
2002	24822216.2
2003	24822257.7
2004	24822294.5
2005	24824221.8
2006	24824267
2007	24824318
2008	24824282
2009	24824359.5
2010	24824397.7
2011	24824407.9
2012	24824528.9
2013	24824253.3
2014	24824545.3
2015	24827168.4
2016	24827582.5
2017	24830750.8
2018	24830734.1
2019	24830587.67
2020	24830629.419
2021	24830819.77