Year	hectares
1961	1300000
1962	1400000
1963	1450000
1964	1500000
1965	1700000
1966	1750000
1967	1700000
1968	1800000
1969	1850000
1970	1800000
1971	1950000
1972	2000000
1973	2050000
1974	2050000
1975	2000000
1976	2000000
1977	2000000
1978	2050000
1979	2050000
1980	1900000
1981	2000000
1982	2100000
1983	2000000
1984	2050000
1985	2050000
1986	2150000
1987	2150000
1988	2150000
1989	2200000
1990	2250000
1991	2350000
1992	2300000
1993	2300000
1994	2100000
1995	2300000
1996	2400000
1997	2450000
1998	2600000
1999	2700000
2000	2750000
2001	2850000
2002	2850000
2003	3000000
2004	3000000
2005	3200000
2006	3300000
2007	3300000
2008	3450000
2009	3500000
2010	3500000
2011	3500000
2012	3500000
2013	3545000
2014	3601000
2015	3656000
2016	3712000
2017	3767000
2018	3823000
2019	3878000
2020	3934000
2021	4000000