Year	hectares
1961	5200000
1962	5050000
1963	6100000
1964	6000000
1965	6000000
1966	6000000
1967	6000000
1968	6000000
1969	6000000
1970	7000000
1971	7000000
1972	7000000
1973	7000000
1974	7000000
1975	7000000
1976	7000000
1977	7000000
1978	8000000
1979	8000000
1980	8000000
1981	8000000
1982	8000000
1983	8000000
1984	8000000
1985	9000000
1986	9000000
1987	9000000
1988	9000000
1989	9000000
1990	9000000
1991	9003000
1992	8800000
1993	8900000
1994	8900000
1995	8900000
1996	9000000
1997	8908000
1998	8725000
1999	8700000
2000	8600000
2001	8530000
2002	8600000
2003	8540000
2004	9097100
2005	9654200
2006	10211300
2007	10768400
2008	11325700
2009	11507100
2010	11688500
2011	11869900
2012	12051300
2013	12232700
2014	12414100
2015	12595500
2016	12776900
2017	12958300
2018	13139700
2019	13321100
2020	13502500
2021	13502500