Year	hectares
1961	18597000
1962	19180000
1963	19600000
1964	20000000
1965	20461000
1966	21608000
1967	22341000
1968	23851000
1969	23977000
1970	24103000
1971	24229000
1972	24355000
1973	24481000
1974	24607000
1975	24733000
1976	24859000
1977	24985000
1978	25111000
1979	25237000
1980	25363000
1981	25489000
1982	25615000
1983	25741000
1984	25867000
1985	25993000
1986	26119000
1987	26245000
1988	26367000
1989	26470000
1990	26575000
1991	26680000
1992	26785000
1993	26890000
1994	26998000
1995	27105000
1996	27212000
1997	27320000
1998	27425000
1999	27532000
2000	27640000
2001	27746000
2002	27862000
2003	29828200
2004	31794400
2005	33791600
2006	35582500
2007	36984900
2008	35636300
2009	34490700
2010	38003100
2011	38626500
2012	39622900
2013	39391300
2014	39215700
2015	40339100
2016	40162500
2017	40385900
2018	40208759.7
2019	40808759.7
2020	42008759.7
2021	42208759.7