Year	hectares
1961	163789648
1962	163975403
1963	168544793
1964	173851787
1965	171467353
1966	176938759
1967	176267194
1968	176678184
1969	177364851
1970	179853765
1971	185456725
1972	184585612
1973	184225401
1974	186193057
1975	190000365
1976	194111355
1977	189940597
1978	191279512
1979	188194428
1980	188121945
1981	189449250
1982	187698886
1983	188953476
1984	188387729
1985	186861548
1986	189148020
1987	188389542
1988	188794460
1989	187958145
1990	187600694
1991	188423757
1992	275508466
1993	269219698
1994	263262802
1995	256692471
1996	256131866
1997	258591009
1998	239283194
1999	238737818
2000	239826502
2001	240724998
2002	239343983
2003	229368990
2004	236614600
2005	239499788
2006	238466150
2007	243214051
2008	250410526
2009	247764397
2010	239418201
2011	251317375
2012	249698606
2013	256597019
2014	258449454
2015	264213799
2016	264225286
2017	268224076
2018	264224178
2019	262928313
2020	270079180
2021	270896582
2022	275472095