Year	Square Kilometers
1990	227260
1991	227090
1992	226920
1993	226750
1994	226580
1995	226410
1996	226240
1997	226070
1998	225900
1999	225730
2000	225560
2001	225390
2002	225220
2003	225050
2004	224880
2005	224710
2006	224590
2007	224470
2008	224350
2009	224230
2010	224110
2011	223956
2012	223802
2013	223648
2014	223494
2015	223340