Year	hectares
1961	1564005
1962	1601500
1963	1641059
1964	1265985
1965	1221450
1966	1337555
1967	1542300
1968	1322190
1969	1350740
1970	1194900
1971	1183300
1972	1187700
1973	1321600
1974	1449400
1975	1483872
1976	1742900
1977	1745900
1978	1125275
1979	1275434
1980	1332975
1981	1428593
1982	1632724
1983	1762950
1984	1598375
1985	1591307
1986	1585416
1987	1586654
1988	2283200
1989	2295039
1990	2438695
1991	2287664
1992	2451592
1993	2921003
1994	3005056
1995	2701973
1996	2016524
1997	2008883
1998	2115948
1999	2464640
2000	2295214
2001	2620017
2002	3193406
2003	3474117
2004	2358031
2005	3119463
2006	3283557
2007	3528534
2008	3445025
2009	3364533
2010	3674945
2011	5519796
2012	4350436
2013	4624379
2014	4501731
2015	5112560
2016	5505277
2017	5803284
2018	5876534
2019	5912553
2020	6140158
2021	6119493
2022	6157560