Year	Square Kilometers
1990	1611.1
1991	1621.6
1992	1632.1
1993	1642.6
1994	1653.1
1995	1663.6
1996	1674.1
1997	1684.6
1998	1695.1
1999	1705.6
2000	1716.1
2001	1718.6
2002	1721.1
2003	1723.5
2004	1726
2005	1728.5
2006	1728.5
2007	1728.5
2008	1728.5
2009	1728.4
2010	1728.4
2011	1728.1
2012	1727.8
2013	1727.6
2014	1727.3
2015	1727