Year	hectares
1961	377707
1962	400547
1963	289041
1964	396330
1965	371808
1966	283580
1967	284792
1968	290790
1969	221975
1970	264027
1971	296864
1972	285188
1973	132827
1974	311469
1975	173126
1976	191425
1977	172963
1978	188057
1979	143583
1980	184623
1981	146944
1982	150962
1983	155807
1984	115268
1985	134451
1986	66454
1987	125477
1988	125766
1989	87014
1990	105746
1991	108539
1992	120512
1993	64864
1994	60084
1995	76321
1996	54909
1997	79567
1998	62907
1999	7851
2000	31765
2001	33885
2002	88162
2003	55780
2004	39960
2005	65853
2006	63406
2007	49995
2008	40405
2009	47914
2010	42968
2011	42817
2012	52624
2013	60762
2014	61768
2015	61812
2016	54334
2017	47410
2018	55112
2019	68862
2020	61457
2021	66941
2022	55039