Year	hectares
1961	595000
1962	577000
1963	792000
1964	790000
1965	793000
1966	792000
1967	792000
1968	798000
1969	804000
1970	810000
1971	816000
1972	822000
1973	828000
1974	834000
1975	850000
1976	900000
1977	950000
1978	1000000
1979	900000
1980	900000
1981	900000
1982	857000
1983	869000
1984	872000
1985	876000
1986	887000
1987	895000
1988	898000
1989	901000
1990	900000
1991	903000
1992	905000
1993	880000
1994	883000
1995	886000
1996	887000
1997	888000
1998	889000
1999	905000
2000	915000
2001	916000
2002	936000
2003	950000
2004	900000
2005	1100000
2006	1050000
2007	1000000
2008	1200000
2009	1200000
2010	1200000
2011	1300000
2012	1300000
2013	1300000
2014	1300000
2015	1300000
2016	1310000
2017	1320200
2018	1371600
2019	1371572.8
2020	1372000
2021	1372000