Year	% of land area
1991	4.3478260869565215
1992	4.3478260869565215
1993	4.3478260869565215
1994	4.3478260869565215
1995	4.3478260869565215
1996	4.3478260869565215
1997	4.3478260869565215
1998	4.3478260869565215
1999	4.3478260869565215
2000	4.3478260869565215
2001	4.3478260869565215
2002	4.3478260869565215
2003	4.3478260869565215
2004	4.3478260869565215
2005	4.3478260869565215
2006	4.3478260869565215
2007	4.3478260869565215
2008	4.3478260869565215
2009	4.3478260869565215
2010	4.3478260869565215
2011	4.3478260869565215
2012	4.3478260869565215
2013	4.3478260869565215
2014	4.3478260869565215
2015	4.3478260869565215
2016	4.3478260869565215
2017	4.3478260869565215
2018	4.3478260869565215
2019	4.3478260869565215
2020	4.3478260869565215
2021	4.3478260869565215