Year	Square Kilometers
1990	48170
1991	47253
1992	46336
1993	45419
1994	44502
1995	43585
1996	42668
1997	41751
1998	40834
1999	39917
2000	39000
2001	38472
2002	37944
2003	37416
2004	36888
2005	36360
2006	36360
2007	36360
2008	36360
2009	36360
2010	36360
2011	36360
2012	36360
2013	36360
2014	36360
2015	36360