Year	sq. km
1990	146322.1
1991	145420.39
1992	144518.68
1993	143616.97
1994	142715.26
1995	141813.55
1996	140911.84
1997	140010.13
1998	139108.42
1999	138206.71
2000	137305
2001	136602.69
2002	135900.38
2003	135198.07
2004	134495.76
2005	133793.45
2006	133091.14
2007	132388.83
2008	131686.52
2009	130984.21
2010	130281.9
2011	129863.88
2012	129445.86
2013	129027.84
2014	128609.82
2015	128191.8
2016	127549.1
2017	126906.4
2018	126263.7
2019	125621
2020	124978.3
2021	124335.6