Year	sq. km
1990	975
1991	975
1992	975
1993	975
1994	975
1995	975
1996	975
1997	975
1998	975
1999	975
2000	975
2001	975
2002	975
2003	975
2004	975
2005	975
2006	975
2007	975
2008	975
2009	975
2010	975
2011	975
2012	975
2013	975
2014	975
2015	975
2016	975
2017	975
2018	975
2019	975
2020	975
2021	975