Year	hectares
1961	121000
1962	122000
1963	123000
1964	124000
1965	125000
1966	126000
1967	128000
1968	128000
1969	130000
1970	130000
1971	133000
1972	138000
1973	143000
1974	170000
1975	164000
1976	163000
1977	170000
1978	177000
1979	166000
1980	159000
1981	181000
1982	202000
1983	183000
1984	169000
1985	169000
1986	177000
1987	184000
1988	199000
1989	181000
1990	187000
1991	196000
1992	162000
1993	161000
1994	180000
1995	185000
1996	190000
1997	205000
1998	215000
1999	225000
2000	234000
2001	244000
2002	254000
2003	264000
2004	273000
2005	283000
2006	293000
2007	303000
2008	372000
2009	428000
2010	450000
2011	450000
2012	450000
2013	450000
2014	450000
2015	450000
2016	450000
2017	440000
2018	440000
2019	440000
2020	440000
2021	440000