Year	hectares
1961	2900000
1962	2900000
1963	2903000
1964	2907000
1965	2911000
1966	2913000
1967	2922000
1968	2919000
1969	2924000
1970	2931000
1971	2937000
1972	2904000
1973	2900000
1974	2906000
1975	2907000
1976	2912000
1977	2964000
1978	2955000
1979	2949000
1980	2957000
1981	2804000
1982	2811000
1983	2710000
1984	2709000
1985	2917000
1986	3085000
1987	3097000
1988	3097000
1989	2845000
1990	2832000
1991	2844000
1992	2601000
1993	2599000
1994	2593000
1995	2593000
1996	2593000
1997	2593000
1998	2593000
1999	2593000
2000	2595000
2001	2598000
2002	2598000
2003	2600000
2004	2650000
2005	2655000
2006	2655000
2007	2659000
2008	2700000
2009	2600000
2010	2600000
2011	2600000
2012	2600000
2013	2600000
2014	2600000
2015	2600000
2016	2600000
2017	2600000
2018	2600000
2019	2600000
2020	2600000
2021	2600000