Year	hectares
1961	1777392
1962	1872821
1963	1940525
1964	1934100
1965	1963000
1966	2018500
1967	2288401
1968	1733214
1969	2140460
1970	2061898
1971	1988087
1972	1908554
1973	1904280
1974	2225750
1975	2247300
1976	1994000
1977	2098896
1978	2029709
1979	2035662
1980	1839110
1981	2202721
1982	2129170
1983	2173976
1984	1846796
1985	2233598
1986	2701884
1987	2551189
1988	2889595
1989	2900530
1990	2528900
1991	2800600
1992	2844000
1993	2699678
1994	2833071
1995	2711913
1996	2707855
1997	2858017
1998	2988490
1999	2957438
2000	2661349
2001	3212574
2002	3308691
2003	3577488
2004	3084961
2005	3237581
2006	3057328
2007	3320950
2008	4191339
2009	3619256
2010	4291496
2011	3684446
2012	4071781
2013	4210656
2014	3646006
2015	3584230
2016	4017586
2017	4026919
2018	4495792
2019	4272786
2020	4104826
2021	4254016
2022	4301063