Year	hectares
1961	275000
1962	294072
1963	263000
1964	178969
1965	145000
1966	140000
1967	146367
1968	173900
1969	222300
1970	303300
1971	274100
1972	297657
1973	331460
1974	295086
1975	261503
1976	240040
1977	228760
1978	228733
1979	224478
1980	225354
1981	222400
1982	228700
1983	227100
1984	238600
1985	237200
1986	248600
1987	231295
1988	229477
1989	245421
1990	230425
1991	222271
1992	252411
1993	191958
1994	272237
1995	254958
1996	357452
1997	373420
1998	329930
1999	289690
2000	326773
2001	312470
2002	320561
2003	337417
2004	304417
2005	285839
2006	267397
2007	277892
2008	285011
2009	419902
2010	402165
2011	351512
2012	358162
2013	380298
2014	361651
2015	267044
2016	316736
2017	275444
2018	282416
2019	248413
2020	204385
2021	194001
2022	151055