Year	hectares
1961	120000
1962	120000
1963	120000
1964	120000
1965	120000
1966	120000
1967	120000
1968	120000
1969	120000
1970	121000
1971	122000
1972	123000
1973	124000
1974	125000
1975	126000
1976	127000
1977	129000
1978	130000
1979	131000
1980	133000
1981	133000
1982	134000
1983	134000
1984	134000
1985	134000
1986	135000
1987	135000
1988	135000
1989	135000
1990	136000
1991	136000
1992	136000
1993	135000
1994	135000
1995	135000
1996	134000
1997	133000
1998	130000
1999	129000
2000	129000
2001	129000
2002	129000
2003	129000
2004	129000
2005	129000
2006	129000
2007	125000
2008	125000
2009	124000
2010	123000
2011	122200
2012	121200
2013	121200
2014	121200
2015	121000
2016	121000
2017	121000
2018	121000
2019	121000
2020	121000
2021	121000