Year	sq. km
1961	74223734.742
1962	74223734.742
1963	74223734.742
1964	74223734.742
1965	74223734.742
1966	74223734.742
1967	74223734.742
1968	74223734.742
1969	74223734.742
1970	74223734.742
1971	74223734.742
1972	74223734.742
1973	74223664.742
1974	74223224.742
1975	74222944.742
1976	74222814.742
1977	74222814.742
1978	74222814.742
1979	74222814.742
1980	74222724.742
1981	74222724.742
1982	74222724.742
1983	74222724.742
1984	74222724.742
1985	74222724.742
1986	74222724.742
1987	74222724.742
1988	74222724.742
1989	74221734.742
1990	74221734.742
1991	74223184.742
1992	95668789.742
1993	95665063.742
1994	95653316.742
1995	95650316.742
1996	95649972.742
1997	95650663.742
1998	95624662.742
1999	95631491.742
2000	95686750.742
2001	95685815.942
2002	95684094.168
2003	95690749.758
2004	95837639.441
2005	95840462.98300001
2006	95940866.745
2007	95940518.55799998
2008	95939602.777
2009	95937134.41800001
2010	95938066.473
2011	95938292.997
2012	96062086.088
2013	96061356.709
2014	96060348.38800001
2015	96064420.528
2016	96064166.368
2017	96057839.45300001
2018	96057915.443
2019	96057059.77399999
2020	96053974.49700001
2021	96069043.564