Year	hectares
1961	1700000
1962	1710000
1963	1710000
1964	1715000
1965	1715000
1966	1720000
1967	1720000
1968	1725000
1969	1725000
1970	1725000
1971	1730000
1972	1730000
1973	1735000
1974	1735000
1975	1740000
1976	1740000
1977	1745000
1978	1750000
1979	1750000
1980	1753000
1981	1758000
1982	1765000
1983	1775000
1984	1780000
1985	1787000
1986	1795000
1987	1800000
1988	1800000
1989	1805000
1990	1805000
1991	1810000
1992	1815000
1993	1815000
1994	1825000
1995	1870000
1996	2028000
1997	2028000
1998	1815000
1999	1815000
2000	1815000
2001	1815000
2002	1815000
2003	1815000
2004	1750000
2005	1750000
2006	1750000
2007	1750000
2008	1750000
2009	1750000
2010	1716000
2011	1716000
2012	1720000
2013	1720000
2014	1720000
2015	1720000
2016	1720000
2017	1720000
2018	1720000
2019	1720000
2020	1720000
2021	1720000