Year	Square Kilometers
1990	16160.3
1991	16003.5
1992	15846.8
1993	15690.1
1994	15533.4
1995	15376.6
1996	15219.9
1997	15063.2
1998	14906.5
1999	14749.7
2000	14593
2001	14507.5
2002	14421.9
2003	14336.4
2004	14250.8
2005	14165.3
2006	14115
2007	14064.7
2008	14014.5
2009	13964.2
2010	13913.9
2011	13863.7
2012	13813.5
2013	13763.4
2014	13713.2
2015	13663