Year	sq. km
1990	1025525.0999999997
1991	1024414.6239999997
1992	1044317.8280000002
1993	1042129.042
1994	1039940.256
1995	1037751.4700000001
1996	1035562.684
1997	1033373.8979999999
1998	1031185.1119999997
1999	1028996.3260000001
2000	1026807.5399999999
2001	1024761.9659999999
2002	1022716.3919999999
2003	1020670.8180000001
2004	1018625.2440000002
2005	1016579.67
2006	1022000.096
2007	1020155.5220000002
2008	1018310.948
2009	1016466.374
2010	1014621.7999999999
2011	1012330.0399999999
2012	1010038.2799999998
2013	1007746.52
2014	1005454.7599999999
2015	1003162.9999999999
2016	1000715.7000000001
2017	998487.7999999998
2018	996029.7000000001
2019	993573.6999999998
2020	991118.6999999997
2021	988663.0310000001