Year	sq. km
1961	98647.9
1962	98647.9
1963	98647.9
1964	98647.9
1965	98647.9
1966	98647.9
1967	98647.9
1968	98647.9
1969	98647.9
1970	98647.9
1971	98647.9
1972	98647.9
1973	98647.9
1974	98647.9
1975	98647.9
1976	98647.9
1977	98647.9
1978	98647.9
1979	98647.9
1980	98647.9
1981	98647.9
1982	98647.9
1983	98647.9
1984	98647.9
1985	98647.9
1986	98647.9
1987	98647.9
1988	98647.9
1989	98647.9
1990	98647.9
1991	98647.9
1992	98647.9
1993	98647.9
1994	98647.9
1995	98647.9
1996	98647.9
1997	98647.9
1998	98647.9
1999	98647.9
2000	98647.9
2001	98647.9
2002	98647.9
2003	98647.9
2004	98647.9
2005	98647.9
2006	98647.9
2007	98647.9
2008	98647.9
2009	98647.9
2010	98647.9
2011	98647.9
2012	98647.9
2013	98647.9
2014	98647.9
2015	98647.9
2016	98647.9
2017	98647.9
2018	98647.9
2019	98647.9
2020	98647.9
2021	98647.9