Year	hectares
1961	9900000
1962	9910000
1963	9920000
1964	9930000
1965	9930000
1966	9940000
1967	9940000
1968	9940000
1969	9950000
1970	9970000
1971	9970000
1972	9970000
1973	9485000
1974	9494000
1975	9505000
1976	9518000
1977	9550000
1978	9558000
1979	9567000
1980	9573000
1981	9605000
1982	9620000
1983	9613000
1984	9591000
1985	9593000
1986	9596000
1987	9574000
1988	9552000
1989	9538000
1990	9567000
1991	9554000
1992	9534000
1993	9579000
1994	9534000
1995	9540000
1996	9543000
1997	9559000
1998	9556000
1999	9690000
2000	9909000
2001	9990000
2002	9862000
2003	9851000
2004	9912000
2005	10059000
2006	10336000
2007	10577000
2008	10694000
2009	10794000
2010	10811000
2011	10786000
2012	10751000
2013	10772000
2014	10816000
2015	10932999.9
2016	10948000
2017	11061600
2018	11080300
2019	10990400
2020	10990000
2021	10990000