Year	Square Kilometers
1990	2407
1991	2399.9
1992	2392.8
1993	2385.7
1994	2378.6
1995	2371.5
1996	2364.4
1997	2357.3
1998	2350.2
1999	2343.1
2000	2336
2001	2328.8
2002	2321.6
2003	2314.4
2004	2307.2
2005	2300
2006	2292.8
2007	2285.6
2008	2278.4
2009	2271.2
2010	2264
2011	2280.2
2012	2296.3
2013	2312.5
2014	2328.6
2015	2344.8