Year	sq. km
1990	191010.169
1991	191304.77199999997
1992	191599.37500000003
1993	191893.978
1994	192188.58099999998
1995	192483.185
1996	192777.788
1997	193072.391
1998	193366.99399999998
1999	193661.597
2000	193956.2
2001	195921.72999999998
2002	197887.26
2003	199852.78999999998
2004	201818.32
2005	203783.84999999998
2006	205749.38000000003
2007	207714.90999999997
2008	209680.44
2009	211645.97
2010	213611.5
2011	213754.56
2012	213897.62
2013	214040.68
2014	214183.74
2015	214326.79999999996
2016	214565.69999999998
2017	214660.19999999995
2018	214816.19999999998
2019	215197.49999999997
2020	215507.79999999996
2021	215865.433