Year	sq. km
1992	62227
1993	62227
1994	62227
1995	62227
1996	62227
1997	62227
1998	62227
1999	62227
2000	62227
2001	62227
2002	62227
2003	62227
2004	62227
2005	62227
2006	62227
2007	62227
2008	62227
2009	62227
2010	62227
2011	62227
2012	62227
2013	62227
2014	62227
2015	62227
2016	62227
2017	62227
2018	62227
2019	62227
2020	62230
2021	62230