Year	sq. km
1990	41141.6
1991	42309.26
1992	42365.62
1993	42421.979999999996
1994	42478.34
1995	42534.7
1996	42591.06
1997	42647.42
1998	42703.78
1999	42760.14
2000	42816.5
2001	42872.38
2002	42928.26
2003	42984.14
2004	43040.02
2005	43095.9
2006	43151.78
2007	43207.659999999996
2008	43263.54
2009	43319.42
2010	43375.299999999996
2011	43431.03999999999
2012	43486.78
2013	43542.52
2014	43598.26
2015	43654
2016	43709.9
2017	43765.7
2018	43821.600000000006
2019	43877.399999999994
2020	43933.2
2021	43989