Year	sq. km
1961	206830
1962	206520
1963	205100
1964	204620
1965	204400
1966	204050
1967	203790
1968	203550
1969	202270
1970	201800
1971	176490
1972	175080
1973	174820
1974	175020
1975	175170
1976	175290
1977	175010
1978	175890
1979	176080
1980	175620
1981	175510
1982	175360
1983	172600
1984	172440
1985	170950
1986	170420
1987	170120
1988	168390
1989	168500
1990	168400
1991	160540
1992	159780
1993	159100
1994	157020
1995	153330
1996	153490
1997	153450
1998	154840
1999	157990
2000	156370
2001	155020
2002	152730
2003	149070
2004	148830
2005	147360
2006	142030
2007	141620
2008	144572
2009	139824
2010	143278
2011	138526
2012	137290
2013	136300
2014	131620
2015	129450
2016	128120
2017	128265.7
2018	124050
2019	131209.62
2020	125183.7
2021	124030.30900000001