Year	sq. km
1990	2060349
1991	2049660.284
1992	2038971.5680000002
1993	2028282.852
1994	2017594.1360000002
1995	2006905.4200000002
1996	1996216.7040000001
1997	1985527.9880000001
1998	1974839.2719999999
1999	1964150.5559999999
2000	1953461.84
2001	1945128.2160000002
2002	1936794.5920000004
2003	1928460.968
2004	1920127.344
2005	1911793.72
2006	1903460.096
2007	1895126.4720000003
2008	1886792.8479999998
2009	1878459.2240000002
2010	1870125.6
2011	1862169.2800000005
2012	1854212.9600000002
2013	1846256.64
2014	1838300.3200000003
2015	1830344
2016	1822960.779
2017	1815608.1
2018	1807898.5999999999
2019	1800220.1000000003
2020	1792580.7000000002
2021	1784915.2330000002