Year	sq. km
1961	117000
1962	117000
1963	117000
1964	117000
1965	117000
1966	117000
1967	117000
1968	117000
1969	117000
1970	117000
1971	117000
1972	117000
1973	117000
1974	117000
1975	118000
1976	118000
1977	118000
1978	119000
1979	119000
1980	119000
1981	119000
1982	120920
1983	120840
1984	122760
1985	123680
1986	123600
1987	124520
1988	125440
1989	125360
1990	126280
1991	127200
1992	127200
1993	128000
1994	129000
1995	131000
1996	133000
1997	135826.95
1998	129852.10699999999
1999	130595.504
2000	127655.201
2001	128980.308
2002	130504.795
2003	125911.29199999999
2004	118695.739
2005	121195.796
2006	120437.92300000001
2007	124722.52
2008	120047.60699999999
2009	123104.653
2010	124004.38
2011	123078.457
2012	123503.384
2013	124630.761
2014	123746.54800000001
2015	124155.145
2016	123579.42199999999
2017	120839.63900000001
2018	122175.416
2019	124799.743
2020	126037.4
2021	126037.4