Year	hectares
1961	85600
1962	88400
1963	88450
1964	99450
1965	114450
1966	125400
1967	136400
1968	143400
1969	149400
1970	149400
1971	160400
1972	162400
1973	168400
1974	170400
1975	177400
1976	178400
1977	186400
1978	187400
1979	191400
1980	195600
1981	196700
1982	202800
1983	210000
1984	211200
1985	195500
1986	202000
1987	194800
1988	211059
1989	219113
1990	214293
1991	209833
1992	195200
1993	210346
1994	347457
1995	322107
1996	326027
1997	353715
1998	319711
1999	344753
2000	309224
2001	276112
2002	324980
2003	322857
2004	304857
2005	277385
2006	299780
2007	241380
2008	227182
2009	306316
2010	292257
2011	276839
2012	384584
2013	188795
2014	494144
2015	306251
2016	284437
2017	322697
2018	304290
2019	63621
2020	308713
2021	325195
2022	267470