Year	hectares
1961	1275850
1962	1277450
1963	1252300
1964	1212024
1965	1214842
1966	1068544
1967	1084300
1968	1077780
1969	983533
1970	958400
1971	1045708
1972	1005090
1973	912800
1974	919800
1975	1020981
1976	1155128
1977	1183800
1978	1243000
1979	1118000
1980	1048000
1981	556000
1982	581344
1983	860635
1984	704640
1985	1129349
1986	1086801
1987	989599
1988	1100319
1989	1123227
1990	1075428
1991	1312746
1992	1337553
1993	1231725
1994	1573818
1995	1559514
1996	1459652
1997	1693957
1998	1885248
1999	1857717
2000	1750631
2001	2081892
2002	1807131
2003	1956034
2004	1807113
2005	2433082
2006	2605749
2007	2467216
2008	2486704
2009	2642645
2010	4257228
2011	2622188
2012	3393562
2013	3187331
2014	3212184
2015	3058448
2016	3401981
2017	3292418
2018	3384176
2019	3300719
2020	3324147
2021	3217982
2022	3310037