Year	hectares
1961	20750946
1962	21280105
1963	21966587
1964	21958743
1965	23079507
1966	22734601
1967	23598490
1968	24663478
1969	23768386
1970	24632267
1971	22742739
1972	25183497
1973	24549422
1974	25000697
1975	25680143
1976	26470518
1977	23803289
1978	24667107
1979	24279025
1980	25582104
1981	26030114
1982	25299223
1983	26099202
1984	24006766
1985	27692500
1986	26601014
1987	26974108
1988	25904132
1989	28026967
1990	29953181
1991	30084495
1992	30718177
1993	29869481
1994	28033483
1995	26791982
1996	30512200
1997	25554547
1998	29544508
1999	24998152
2000	24018660
2001	25477496
2002	25910046
2003	28559028
2004	29300441
2005	30283799
2006	29313857
2007	29222616
2008	23704985
2009	27542671
2010	27698725
2011	27700465
2012	28260638
2013	28524831
2014	27700943
2015	25469506
2016	24496665
2017	26901490
2018	24867831
2019	29347548
2020	28440667
2021	25832389
2022	23549290