Year	hectares
1961	24829776
1962	25301332
1963	25898736
1964	25855980
1965	26446153
1966	26873816
1967	28856437
1968	28397873
1969	29720296
1970	29679450
1971	30611798
1972	31051898
1973	29296100
1974	30884583
1975	30306267
1976	31564774
1977	31042701
1978	31098385
1979	29512153
1980	30735265
1981	31595579
1982	30849874
1983	31552565
1984	31655764
1985	34771309
1986	35863020
1987	33697837
1988	38036172
1989	35177677
1990	31504570
1991	33754551
1992	34593582
1993	33820636
1994	40218637
1995	36941363
1996	40233035
1997	41658119
1998	39180833
1999	37085917
2000	36912463
2001	38606351
2002	38519653
2003	44230308
2004	40301847
2005	49232324
2006	43677640
2007	43989024
2008	46460201
2009	46871505
2010	48129579
2011	50545225
2012	46378756
2013	52397803
2014	55090517
2015	49491413
2016	55716244
2017	53687176
2018	54948953
2019	51980753
2020	55508093
2021	55883601
2022	55632576