Year	hectares
1961	1680000
1962	1690000
1963	1700000
1964	1710000
1965	1720000
1966	1730000
1967	1740000
1968	1750000
1969	1760000
1970	1770000
1971	1780000
1972	1790000
1973	1800000
1974	1810000
1975	1820000
1976	1830000
1977	1840000
1978	1850000
1979	1860000
1980	1870000
1981	1870000
1982	1870000
1983	1870000
1984	1870000
1985	1870000
1986	1870000
1987	1870000
1988	1870000
1989	1870000
1990	1870000
1991	1870000
1992	1870000
1993	1870000
1994	1870000
1995	1870000
1996	1870000
1997	1870000
1998	1870000
1999	1870000
2000	1870000
2001	1870000
2002	1870000
2003	1870000
2004	1870000
2005	1870000
2006	1870000
2007	1870000
2008	1870000
2009	1866000
2010	1834000
2011	1800000
2012	1800000
2013	1800000
2014	1800000
2015	1800000
2016	1800000
2017	1800000
2018	1800000
2019	1800000
2020	1800000
2021	1800000