Year	hectares
1961	719295
1962	745816
1963	724960
1964	781750
1965	777380
1966	807950
1967	836815
1968	709050
1969	826697
1970	867040
1971	865290
1972	839220
1973	816505
1974	807755
1975	806258
1976	846300
1977	848608
1978	758571
1979	786296
1980	639839
1981	770429
1982	808350
1983	775425
1984	858155
1985	785823
1986	822030
1987	922102
1988	954645
1989	966781
1990	683214
1991	753078
1992	608643
1993	746619
1994	827184
1995	807244
1996	889045
1997	937700
1998	1034407
1999	1091819
2000	1152375
2001	1153068
2002	1139801
2003	1138721
2004	1048887
2005	1161342
2006	1154279
2007	1156981
2008	1225662
2009	1288564
2010	1248959
2011	1184352
2012	1258752
2013	1279904
2014	1246988
2015	1289293
2016	1209120
2017	1219184
2018	1248111
2019	1209306
2020	1185746
2021	1207787
2022	1217669