Year	hectares
1961	10775000
1962	10875000
1963	10975000
1964	11072000
1965	11172000
1966	11270000
1967	11370000
1968	11467000
1969	11567000
1970	11665000
1971	11763000
1972	11861000
1973	11958000
1974	12015000
1975	12115000
1976	12210000
1977	12308000
1978	12346000
1979	12345000
1980	12360000
1981	12390000
1982	12450000
1983	12500000
1984	12550000
1985	12600000
1986	12650000
1987	12700000
1988	12740000
1989	12750000
1990	12800000
1991	12850000
1992	12900000
1993	14618000
1994	15000000
1995	16157000
1996	16672000
1997	16600000
1998	16500000
1999	16380000
2000	16233000
2001	16376000
2002	16519000
2003	18052000
2004	18019000
2005	18750000
2006	18750000
2007	19247000
2008	19321000
2009	19898800
2010	19877700
2011	19877700
2012	19856760
2013	19839960
2014	19823160
2015	20080080
2016	20385000
2017	20689920
2018	20994840
2019	20994840
2020	20994840
2021	20994840