Year	sq. km
1961	71842882.742
1962	71842882.742
1963	71842882.742
1964	71842882.742
1965	71842882.742
1966	71842882.742
1967	71842882.742
1968	71842882.742
1969	71842882.742
1970	71842882.742
1971	71842882.742
1972	71842882.742
1973	71842812.742
1974	71842372.742
1975	71841952.742
1976	71841822.742
1977	71841822.742
1978	71841822.742
1979	71841822.742
1980	71841822.742
1981	71841822.742
1982	71841822.742
1983	71841822.742
1984	71841822.742
1985	71841822.742
1986	71841822.742
1987	71841822.742
1988	71841822.742
1989	71841822.742
1990	71841822.742
1991	71843162.742
1992	93232857.742
1993	93229131.742
1994	93217334.742
1995	93214354.742
1996	93213910.742
1997	93214591.742
1998	93188600.742
1999	93195419.742
2000	93250566.742
2001	93249631.942
2002	93246740.168
2003	93253323.758
2004	93400083.441
2005	93402956.98300001
2006	93503360.745
2007	93503112.558
2008	93502206.777
2009	93499598.418
2010	93500540.47299999
2011	93501119.99700001
2012	93624859.088
2013	93621700.709
2014	93620682.388
2015	93624834.528
2016	93624520.368
2017	93617953.45300001
2018	93617989.443
2019	93617193.774
2020	93614092.49700001
2021	93629196.564