Year	hectares
1961	90000
1962	91000
1963	91000
1964	91000
1965	92000
1966	89000
1967	94000
1968	100000
1969	100000
1970	100000
1971	100000
1972	100000
1973	100000
1974	100000
1975	99000
1976	100000
1977	100000
1978	100000
1979	100000
1980	100000
1981	100000
1982	100000
1983	100000
1984	100000
1985	100000
1986	100000
1987	100000
1988	100000
1989	99000
1990	98000
1991	97000
1992	96000
1993	94000
1994	93000
1995	92000
1996	91000
1997	90000
1998	91000
1999	89000
2000	90000
2001	91000
2002	89000
2003	88000
2004	87000
2005	85000
2006	83000
2007	81000
2008	80000
2009	80000
2010	80000
2011	78000
2012	76000
2013	75000
2014	75000
2015	75000
2016	75000
2017	75000
2018	75000
2019	75000
2020	75000
2021	75000