Year	sq. km
1990	337
1991	337
1992	337
1993	337
1994	337
1995	337
1996	337
1997	337
1998	337
1999	337
2000	337
2001	337
2002	337
2003	337
2004	337
2005	337
2006	337
2007	337
2008	337
2009	337
2010	337
2011	337
2012	337
2013	337
2014	337
2015	337
2016	337
2017	337
2018	337
2019	337
2020	337
2021	337