Year	Square Kilometers
1990	433780
1991	431590
1992	429400
1993	427210
1994	425020
1995	422830
1996	420640
1997	418450
1998	416260
1999	414070
2000	411880
2001	409662
2002	407444
2003	405226
2004	403008
2005	400790
2006	398576
2007	396362
2008	394148
2009	391934
2010	389720
2011	387656
2012	385592
2013	383528
2014	381464
2015	379400