Year	hectares
1961	2670000
1962	2700000
1963	2720000
1964	2750000
1965	2770000
1966	2800000
1967	2830000
1968	2860000
1969	2900000
1970	2900000
1971	2900000
1972	2900000
1973	2900000
1974	2900000
1975	2900000
1976	2900000
1977	2900000
1978	2900000
1979	2900000
1980	2900000
1981	2900000
1982	2900000
1983	2900000
1984	2900000
1985	2900000
1986	2900000
1987	2900000
1988	2900000
1989	2900000
1990	2900000
1991	2950000
1992	3000000
1993	3000000
1994	3000000
1995	3000000
1996	3000000
1997	3000000
1998	3000000
1999	3000000
2000	3000000
2001	3000000
2002	3100000
2003	3300000
2004	3300000
2005	3300000
2006	3300000
2007	3400000
2008	3400000
2009	4000000
2010	4200000
2011	4700000
2012	4700000
2013	4845000
2014	5010000
2015	5125000
2016	5347000
2017	5352000
2018	5357000
2019	5363000
2020	5368000
2021	5373000