Year	Square Kilometers
1990	166600
1991	166562
1992	166524
1993	166486
1994	166448
1995	166410
1996	166372
1997	166334
1998	166296
1999	166258
2000	166220
2001	166180
2002	166140
2003	166100
2004	166060
2005	166020
2006	165968
2007	165916
2008	165864
2009	165812
2010	165760
2011	165660
2012	165560
2013	165460
2014	165360
2015	165260