Year	sq. km
1961	1101000
1962	1101000
1963	1101000
1964	1101000
1965	1101000
1966	1101000
1967	1101000
1968	1101000
1969	1101000
1970	1101000
1971	1101000
1972	1101000
1973	1101000
1974	1101000
1975	1101000
1976	1101000
1977	1101000
1978	1101000
1979	1101000
1980	1101000
1981	1101000
1982	1101000
1983	1101000
1984	1101000
1985	1101000
1986	1101000
1987	1101000
1988	1101000
1989	1101000
1990	1101000
1991	1101000
1992	1101000
1993	1000000
1994	1000000
1995	1000000
1996	1000000
1997	1000000
1998	1000000
1999	1000000
2000	1000000
2001	1000000
2002	1000000
2003	1000000
2004	1128597.297
2005	1128599.7659999998
2006	1128613.221
2007	1128631.0590000001
2008	1128568.396
2009	1128588.692
2010	1128570.952
2011	1128575.061
2012	1128582.022
2013	1128572.048
2014	1128538.2820000001
2015	1128539.353
2016	1128558.509
2017	1128552.82
2018	1128561.429
2019	1128570.858
2020	1128571.265
2021	1128571.265