Year	hectares
1961	1705000
1962	1705000
1963	1710000
1964	1710000
1965	1715000
1966	1715000
1967	1720000
1968	1715000
1969	1720000
1970	1725000
1971	1730000
1972	1735000
1973	1740000
1974	1753000
1975	1720000
1976	1680000
1977	1650000
1978	1610000
1979	1580000
1980	1542000
1981	1600000
1982	1552000
1983	1560000
1984	1575000
1985	1590000
1986	1605000
1987	1616000
1988	1625000
1989	1583000
1990	1604000
1991	1644000
1992	1633000
1993	1569000
1994	1621000
1995	1574000
1996	1607000
1997	1609000
1998	1602000
1999	1610000
2000	1616000
2001	1500000
2002	1360000
2003	1299000
2004	1277000
2005	1296000
2006	1233000
2007	1195000
2008	1236000
2009	1199400
2010	1186400
2011	1155700
2012	1147900
2013	1194000
2014	970000
2015	1068000
2016	976000
2017	1033000
2018	968000
2019	989000
2020	1038000
2021	1024000