Year	sq. km
1990	5098.6
1991	5098.6
1992	5098.6
1993	5098.6
1994	5098.6
1995	5098.6
1996	5098.6
1997	5098.6
1998	5098.6
1999	5098.6
2000	5098.6
2001	5098.6
2002	5098.6
2003	5098.6
2004	5098.6
2005	5098.6
2006	5098.6
2007	5098.6
2008	5098.6
2009	5098.6
2010	5098.6
2011	5098.6
2012	5098.6
2013	5098.6
2014	5098.6
2015	5098.6
2016	5098.6
2017	5098.6
2018	5098.6
2019	5098.6
2020	5098.6
2021	5098.6