Year	sq. km
1961	24766870.742
1962	24766870.742
1963	24766870.742
1964	24766870.742
1965	24766870.742
1966	24766870.742
1967	24766870.742
1968	24766870.742
1969	24766870.742
1970	24766870.742
1971	24766870.742
1972	24766870.742
1973	24766830.742
1974	24766830.742
1975	24766970.742
1976	24766970.742
1977	24766970.742
1978	24766970.742
1979	24766970.742
1980	24766970.742
1981	24766970.742
1982	24766970.742
1983	24766970.742
1984	24766970.742
1985	24766970.742
1986	24766970.742
1987	24766970.742
1988	24766970.742
1989	24765980.742
1990	24765980.742
1991	24766090.742
1992	44391634.742
1993	44436044.742
1994	44431234.742
1995	44428244.742
1996	44427844.742
1997	44428534.742
1998	44431109.742
1999	44437932.742
2000	44416123.742
2001	44415246.942
2002	44415380.168000005
2003	44422250.758
2004	44422418.519
2005	44425322.890999995
2006	44525522.493
2007	44524986.893
2008	44524344.886999995
2009	44524430.134
2010	44524774.418
2011	44524759.947
2012	44524782.946
2013	44525435.383
2014	44525704.921
2015	44524904.4
2016	44524912.4
2017	44524210.4
2018	44524754.3
2019	44524698.37
2020	44521586.403000005
2021	44521646