Year	Square Kilometers
1990	9120
1991	9120
1992	9212
1993	9258
1994	9304
1995	9350
1996	9396
1997	9442
1998	9488
1999	9534
2000	9580
2001	9614
2002	9648
2003	9682
2004	9716
2005	9750
2006	9796
2007	9842
2008	9888
2009	9934
2010	9980
2011	9980
2012	9980
2013	9980
2014	9980
2015	9980