Year	% of land area
1961	0.7590132827324478
1962	0.7590132827324478
1963	0.7590132827324478
1964	0.7590132827324478
1965	0.7590132827324478
1966	1.1385199240986716
1967	1.1385199240986716
1968	1.1385199240986716
1969	1.1385199240986716
1970	1.1385199240986716
1971	0.7590132827324478
1972	0.7590132827324478
1973	0.7590132827324478
1974	0.7590132827324478
1975	0.7590132827324478
1976	0.7590132827324478
1977	0.7590132827324478
1978	0.7590132827324478
1979	0.7590132827324478
1980	0.7590132827324478
1981	0.7590132827324478
1982	0.7590132827324478
1983	0.7590132827324478
1984	0.7590132827324478
1985	0.7590132827324478
1986	0.7590132827324478
1987	0.7590132827324478
1988	0.7590132827324478
1989	0.7590132827324478
1990	0.7590132827324478
1991	0.7590132827324478
1992	0.7590132827324478
1993	0.7590132827324478
1994	0.7590132827324478
1995	0.7590132827324478
1996	0.7590132827324478
1997	0.7590132827324478
1998	0.7590132827324478
1999	0.7590132827324478
2000	0.7590132827324478
2001	0.7590132827324478
2002	0.7590132827324478
2003	0.7590132827324478
2004	0.7590132827324478
2005	0.7590132827324478
2006	0.7590132827324478
2007	0.7590132827324478
2008	0.7590132827324478
2009	0.7590132827324478
2010	0.7590132827324478
2011	0.7590132827324478
2012	0.7590132827324478
2013	0.7590132827324478
2014	0.7590132827324478
2015	0.7590132827324478
2016	0.7590132827324478
2017	0.7590132827324478
2018	0.7590132827324478
2019	0.7590132827324478
2020	0.7590132827324478
2021	0.7590132827324478