Year	hectares
1961	2124000
1962	2134000
1963	2144000
1964	2149000
1965	2159000
1966	2170000
1967	2180000
1968	2190000
1969	2202000
1970	2216000
1971	2200000
1972	2282000
1973	2353000
1974	2433000
1975	2506000
1976	2550000
1977	2600000
1978	2650000
1979	2700000
1980	2745000
1981	2790000
1982	2840000
1983	2885000
1984	2930000
1985	2980000
1986	3025000
1987	3075000
1988	3494000
1989	3530000
1990	3505000
1991	3480000
1992	3455000
1993	3430000
1994	3361000
1995	3380000
1996	3480000
1997	3780000
1998	3900000
1999	3996000
2000	4091000
2001	4187000
2002	4283000
2003	4378000
2004	4474000
2005	4570000
2006	4665000
2007	4761000
2008	4857000
2009	4952000
2010	5048000
2011	5143000
2012	5239000
2013	5335000
2014	5430000
2015	5526000
2016	5622000
2017	5717000
2018	5813000
2019	5909000
2020	6004000
2021	6100000