Year	Square Kilometers
1990	3450
1991	3465
1992	3480
1993	3495
1994	3510
1995	3525
1996	3540
1997	3555
1998	3570
1999	3585
2000	3600
2001	3610
2002	3620
2003	3630
2004	3640
2005	3650
2006	3666
2007	3682
2008	3698
2009	3714
2010	3730
2011	3736
2012	3742
2013	3748
2014	3754
2015	3760