Year	hectares
1961	431159
1962	441960
1963	475397
1964	479702
1965	432772
1966	428936
1967	392107
1968	444767
1969	464910
1970	453355
1971	463110
1972	451760
1973	456646
1974	477335
1975	519250
1976	516695
1977	536940
1978	519405
1979	526295
1980	560535
1981	589060
1982	558838
1983	476083
1984	662023
1985	728061
1986	651475
1987	649338
1988	631546
1989	624287
1990	582495
1991	664550
1992	680232
1993	724636
1994	670717
1995	697917
1996	705642
1997	680721
1998	774566
1999	832306
2000	757852
2001	742201
2002	768259
2003	744911
2004	775942
2005	861350
2006	888530
2007	983097
2008	1018121
2009	1014013
2010	941043
2011	972000
2012	1005820
2013	1457127
2014	1250800
2015	1287146
2016	1260291
2017	1234818
2018	1400133
2019	1434439
2020	1439926
2021	1482844
2022	1523612