Year	sq. km
1992	9211.1
1993	9256.65
1994	9302.2
1995	9347.75
1996	9393.3
1997	9438.85
1998	9484.4
1999	9529.95
2000	9575.5
2001	9578.38
2002	9581.26
2003	9584.14
2004	9587.02
2005	9589.9
2006	9592.78
2007	9595.66
2008	9598.54
2009	9601.42
2010	9604.3
2011	9672.24
2012	9740.18
2013	9808.12
2014	9876.06
2015	9944
2016	10016.7
2017	10014.9
2018	10014.9
2019	10014.9
2020	10014.9
2021	10014.9