Year	hectares
1961	18000000
1962	18000000
1963	18000000
1964	18000000
1965	18000000
1966	18000000
1967	18000000
1968	18000000
1969	18000000
1970	18000000
1971	18000000
1972	18000000
1973	18000000
1974	18000000
1975	18000000
1976	18000000
1977	18000000
1978	18000000
1979	18000000
1980	18000000
1981	18000000
1982	18000000
1983	18000000
1984	18021000
1985	19500000
1986	20178000
1987	21170000
1988	21156000
1989	20860000
1990	20253000
1991	18081000
1992	18100000
1993	18129000
1994	17126000
1995	17342000
1996	17941000
1997	18500000
1998	18700000
1999	19700000
2000	20500000
2001	21175000
2002	21850000
2003	22525000
2004	23200000
2005	23230000
2006	23260000
2007	23290000
2008	23320000
2009	23350000
2010	23380000
2011	23410000
2012	23440000
2013	23470000
2014	23500000
2015	23800000
2016	25200000
2017	26300000
2018	26300000
2019	26300000
2020	26300000
2021	26300000