Year	sq. km
1961	118480
1962	118480
1963	118480
1964	118480
1965	118480
1966	118480
1967	118480
1968	118480
1969	118480
1970	118480
1971	118480
1972	118480
1973	118480
1974	118480
1975	118480
1976	118480
1977	118480
1978	118480
1979	118480
1980	118480
1981	118480
1982	118480
1983	118480
1984	118480
1985	118480
1986	118480
1987	118480
1988	118480
1989	118480
1990	118480
1991	118480
1992	118480
1993	118480
1994	118480
1995	118480
1996	118480
1997	118480
1998	118480
1999	118480
2000	118480
2001	118480
2002	118480
2003	118480
2004	118480
2005	118480
2006	118480
2007	118480
2008	118480
2009	118480
2010	118480
2011	118480
2012	118480
2013	118480
2014	118480
2015	118480
2016	118480
2017	118480
2018	118480
2019	118480
2020	118480
2021	118480