Year	% of land area
1993	1.0187110187110187
1994	1.0395010395010396
1995	1.0187110187110187
1996	1.0187110187110187
1997	1.0187110187110187
1998	0.997920997920998
1999	0.997920997920998
2000	0.9771309771309772
2001	0.6029106029106029
2002	0.5821205821205822
2003	0.5819995842860112
2004	0.5613305613305614
2005	0.5405405405405406
2006	0.5197505197505198
2007	0.5197505197505198
2008	0.4781704781704782
2009	0.4990642545227698
2010	0.5281653531845876
2011	0.4221427383130927
2012	0.420063217434703
2013	0.4325403427050407
2014	0.3910149750415973
2015	0.37436046753462837
2016	0.37437603993344426
2017	0.37437603993344426
2018	0.3535773710482529
2019	0.37437603993344426
2020	0.37437603993344426
2021	0.37437603993344426