Year	sq. km
1992	28470
1993	28470
1994	28470
1995	28470
1996	28470
1997	28470
1998	28470
1999	28470
2000	28470
2001	28470
2002	28470
2003	28470
2004	28470
2005	28470
2006	28470
2007	28470
2008	28470
2009	28470
2010	28470
2011	28470
2012	28470
2013	28470
2014	28470
2015	28470
2016	28470
2017	28470
2018	28470
2019	28470
2020	28470
2021	28470