Year	sq. km
1990	4.2
1991	4.2
1992	4.2
1993	4.2
1994	4.2
1995	4.2
1996	4.2
1997	4.2
1998	4.2
1999	4.2
2000	4.2
2001	4.2
2002	4.2
2003	4.2
2004	4.2
2005	4.2
2006	4.2
2007	4.2
2008	4.2
2009	4.2
2010	4.2
2011	4.2
2012	4.2
2013	4.2
2014	4.2
2015	4.2
2016	4.2
2017	4.2
2018	4.2
2019	4.2
2020	4.2
2021	4.2