Year	Square Kilometers
1990	2450
1991	2515
1992	2580
1993	2645
1994	2710
1995	2775
1996	2840
1997	2905
1998	2970
1999	3035
2000	3100
2001	3104
2002	3108
2003	3112
2004	3116
2005	3120
2006	3130.6
2007	3141.2
2008	3151.8
2009	3162.4
2010	3173
2011	3183.6
2012	3194.2
2013	3204.8
2014	3215.4
2015	3226