Year	hectares
1961	243500
1962	251500
1963	223100
1964	244900
1965	270200
1966	274300
1967	305300
1968	328300
1969	338025
1970	340353
1971	347555
1972	275059
1973	272257
1974	346853
1975	298130
1976	303762
1977	280140
1978	306670
1979	253552
1980	242806
1981	302920
1982	287727
1983	255001
1984	278040
1985	305020
1986	250585
1987	273280
1988	286650
1989	312410
1990	319970
1991	282660
1992	295120
1993	328849
1994	302036
1995	369669
1996	398898
1997	360291
1998	376287
1999	349902
2000	464224
2001	445957
2002	525819
2003	538652
2004	444255
2005	541777
2006	470290
2007	474174
2008	432673
2009	440252
2010	464851
2011	505912
2012	505384
2013	547317
2014	438100
2015	385455
2016	482508
2017	432035
2018	391562
2019	411599
2020	407063
2021	384553
2022	402346