Year	hectares
1961	675000
1962	700000
1963	724000
1964	744000
1965	756000
1966	753000
1967	788000
1968	800000
1969	992000
1970	940000
1971	929000
1972	896000
1973	930000
1974	930000
1975	930000
1976	935000
1977	942000
1978	935000
1979	930000
1980	930000
1981	930000
1982	930000
1983	930000
1984	930000
1985	930000
1986	930000
1987	930000
1988	930000
1989	930000
1990	930000
1991	930000
1992	930000
1993	930000
1994	930000
1995	940000
1996	940000
1997	950000
1998	950000
1999	960000
2000	960000
2001	975000
2002	986000
2003	990000
2004	985000
2005	956000
2006	939000
2007	942000
2008	945000
2009	948000
2010	950000
2011	1000000
2012	1027000
2013	1054000
2014	1081000
2015	1108000
2016	1135000
2017	1162000
2018	1189000
2019	1216000
2020	1243000
2021	1270000