Year	Square Kilometers
1961	30
1962	30
1963	30
1964	30
1965	30
1966	30
1967	30
1968	30
1969	30
1970	30
1971	30
1972	30
1973	30
1974	30
1975	30
1976	30
1977	30
1978	30
1979	30
1980	30
1981	30
1982	30
1983	30
1984	30
1985	30
1986	30
1987	30
1988	30
1989	30
1990	30
1991	30
1992	30
1993	30
1994	30
1995	30
1996	30
1997	30
1998	30
1999	30
2000	30
2001	30
2002	30
2003	30
2004	30
2005	30
2006	30
2007	30
2008	30
2009	30
2010	30
2011	30
2012	30
2013	30
2014	30
2015	30
2016	30
2017	30