Year	hectares
1961	5882000
1962	6093000
1963	6113700
1964	6156100
1965	6228600
1966	6290300
1967	6348600
1968	6424300
1969	6499800
1970	6580200
1971	6670300
1972	6429500
1973	5282000
1974	5351000
1975	4464500
1976	4426300
1977	4230000
1978	4454800
1979	4628900
1980	5079000
1981	4711820
1982	4629430
1983	5029230
1984	4715860
1985	4814680
1986	4991450
1987	4950900
1988	5054810
1989	4891260
1990	4957410
1991	4444010
1992	4356060
1993	4040330
1994	5392277
1995	6532410
1996	7736657
1997	7504650
1998	6319880
1999	7463030
2000	7184230
2001	8001604
2002	6648807
2003	8486199
2004	8722142
2005	9365022
2006	8105902
2007	9196798
2008	9880145
2009	9991821
2010	10400347
2011	10268620
2012	10351267
2013	10627226
2014	10833970
2015	11018259
2016	11303227
2017	11327016
2018	10390466
2019	10478218
2020	10571532
2021	10582984
2022	11236673