Year	sq. km
1990	110047.9
1991	109824.11
1992	109600.32
1993	109376.53
1994	109152.74
1995	108928.95
1996	108705.16
1997	108481.37
1998	108257.58
1999	108033.79
2000	107810
2001	107618.23
2002	107426.46
2003	107234.69
2004	107042.92
2005	106851.15
2006	106659.38
2007	106467.61
2008	106275.84
2009	106084.07
2010	105892.3
2011	102407.48
2012	98922.66
2013	95437.84
2014	91953.02
2015	88468.2
2016	86911.3
2017	85354.4
2018	83797.5
2019	82240.6
2020	80683.7
2021	79126.8