Year	Square Kilometers
1990	16210
1991	16589.6
1992	16210
1993	16075
1994	16030
1995	15985
1996	15940
1997	15895
1998	15850
1999	15805
2000	15760
2001	15716
2002	15672
2003	15628
2004	15584
2005	15540
2006	15496
2007	15452
2008	15408
2009	15364
2010	15320
2011	15276
2012	15232
2013	15188
2014	15144
2015	15100