Year	hectares
1961	350000
1962	350000
1963	350000
1964	350000
1965	350000
1966	355000
1967	355000
1968	355000
1969	355000
1970	360000
1971	360000
1972	360000
1973	362000
1974	362000
1975	364000
1976	365866.7
1977	367733.3
1978	369600
1979	371466.7
1980	373333.3
1981	375200
1982	377066.7
1983	378933.3
1984	380800
1985	382666.7
1986	384533.3
1987	386400
1988	388266.7
1989	390133.3
1990	392000
1991	393866.7
1992	395733.3
1993	397600
1994	399466.7
1995	401333.3
1996	403200
1997	405066.7
1998	406933.3
1999	408800
2000	410666.7
2001	412533.3
2002	414400
2003	416266.7
2004	418133.3
2005	420000
2006	420000
2007	420000
2008	420000
2009	420000
2010	420000
2011	420000
2012	420000
2013	420000
2014	420000
2015	420000
2016	420000
2017	420000
2018	420000
2019	420000
2020	420000
2021	420000