Year	hectares
1961	5660000
1962	5620000
1963	5570000
1964	5530000
1965	5478000
1966	5453000
1967	5377000
1968	5320000
1969	5162000
1970	5196000
1971	5125000
1972	5057000
1973	5015000
1974	4978000
1975	4945000
1976	4921000
1977	4911000
1978	4898000
1979	4882000
1980	4874000
1981	4861000
1982	4852000
1983	4843000
1984	4836000
1985	4830000
1986	4820000
1987	4814000
1988	4806000
1989	4792000
1990	4768000
1991	4740000
1992	4714000
1993	4685000
1994	4660000
1995	4630000
1996	4602000
1997	4569000
1998	4535000
1999	4503000
2000	4474000
2001	4444000
2002	4419000
2003	4397000
2004	4379000
2005	4360000
2006	4343000
2007	4326000
2008	4308000
2009	4294000
2010	4282000
2011	4254000
2012	4246000
2013	4238000
2014	4222000
2015	4205000
2016	4184000
2017	4161000
2018	4142000
2019	4124000
2020	4104000
2021	4086000