Year	hectares
1961	23628000
1962	24157000
1963	24687000
1964	25216000
1965	25745000
1966	26274000
1967	26803000
1968	27332000
1969	27861000
1970	28206000
1971	29329000
1972	30452000
1973	31574000
1974	32697000
1975	33822000
1976	36567000
1977	39311000
1978	42056000
1979	44800000
1980	47546208
1981	48543000
1982	49540000
1983	50537000
1984	51534000
1985	52907707
1986	51794000
1987	50681000
1988	49567000
1989	48454000
1990	47340000
1991	46226000
1992	45113000
1993	43999000
1994	42886000
1995	42563000
1996	43140000
1997	43717000
1998	44294000
1999	44871000
2000	45448000
2001	46025000
2002	46602000
2003	47179000
2004	47756000
2005	48333000
2006	48914000
2007	49537000
2008	50159000
2009	50782000
2010	51405000
2011	52027000
2012	52650000
2013	53272000
2014	53895000
2015	54518000
2016	55140000
2017	55762000
2018	56385000
2019	57007690
2020	57630280
2021	58252760