Year	sq. km
1961	24272551
1962	24272551
1963	24272551
1964	24272551
1965	24272551
1966	24272551
1967	24272551
1968	24272551
1969	24272551
1970	24272551
1971	24272551
1972	24272551
1973	24272551
1974	24272551
1975	24272551
1976	24272551
1977	24272551
1978	24272551
1979	24272551
1980	24272551
1981	24272551
1982	24272551
1983	24272551
1984	24272551
1985	24272551
1986	24272551
1987	24272551
1988	24272551
1989	24272551
1990	24272551
1991	24272551
1992	24272551
1993	24272551
1994	24272551
1995	24272551
1996	24272551
1997	24272551
1998	24272551
1999	24272551
2000	24272551
2001	24272551
2002	24272551
2003	24272551
2004	24308585.114
2005	24308584.169
2006	24308553.93
2007	24308521.599
2008	24308538.542
2009	24308550.862
2010	24308545.450999998
2011	24308791.029
2012	24327857.533
2013	24327825.412
2014	24327811.957999997
2015	24327865.541
2016	24327852.92
2017	24327847.283
2018	24327853.383
2019	24327847.118
2020	24327805.871
2021	24327805.871