Year	Square Kilometers
1961	92120
1962	92120
1963	92120
1964	92120
1965	92120
1966	92120
1967	92120
1968	92120
1969	92120
1970	92120
1971	92120
1972	92120
1973	92120
1974	92120
1975	92120
1976	92120
1977	92120
1978	92120
1979	92120
1980	92120
1981	92120
1982	92120
1983	92120
1984	92120
1985	92120
1986	92120
1987	92120
1988	92120
1989	92120
1990	92120
1991	92120
1992	92120
1993	92120
1994	92120
1995	92120
1996	92120
1997	92120
1998	92120
1999	92120
2000	92120
2001	92120
2002	92120
2003	92120
2004	92120
2005	92090
2006	92090
2007	92090
2008	92090
2009	92210
2010	92210
2011	92210
2012	92210
2013	92220
2014	92225
2015	92225
2016	92225
2017	92225