Year	hectares
1961	90000
1962	100000
1963	110000
1964	120000
1965	130000
1966	140000
1967	150000
1968	160000
1969	170000
1970	180000
1971	190000
1972	200000
1973	210000
1974	220000
1975	232000
1976	258000
1977	273000
1978	287000
1979	289000
1980	291000
1981	293000
1982	295000
1983	297000
1984	299000
1985	301000
1986	303000
1987	305000
1988	307000
1989	309000
1990	311000
1991	313000
1992	315000
1993	317000
1994	319000
1995	325000
1996	325000
1997	325000
1998	325000
1999	325000
2000	325000
2001	325000
2002	325000
2003	325000
2004	325000
2005	325000
2006	325000
2007	325000
2008	325000
2009	325000
2010	325000
2011	325000
2012	325000
2013	325000
2014	325000
2015	325000
2016	325000
2017	325000
2018	325000
2019	325000
2020	325000
2021	325000