Year	hectares
1961	7858558
1962	8090856
1963	8212602
1964	8533549
1965	8872528
1966	8667751
1967	9031397
1968	9536762
1969	9706300
1970	9837847
1971	9473889
1972	9190065
1973	9602198
1974	9525590
1975	9435332
1976	9764570
1977	10280049
1978	10330327
1979	10585100
1980	10584500
1981	10910000
1982	11040200
1983	11401300
1984	11350900
1985	11048800
1986	11382000
1987	11317900
1988	11302100
1989	11809700
1990	11864100
1991	11705800
1992	11738200
1993	12181400
1994	12134600
1995	12210700
1996	12410400
1997	12356500
1998	12718800
1999	12515100
2000	12668100
2001	12126700
2002	12022100
2003	12481100
2004	12470000
2005	12809800
2006	12931600
2007	13051400
2008	13387900
2009	13674300
2010	13332376
2011	13308200
2012	12749240
2013	13363900
2014	13959878
2015	13961922
2016	14087724
2017	13928846
2018	13735791
2019	13893543
2020	14083007
2021	14703100
2022	14011020