Year	hectares
1961	15734450
1962	15749272
1963	15740700
1964	15720888
1965	15593838
1966	15630568
1967	15559543
1968	15621490
1969	15781012
1970	15659724
1971	15827054
1972	15577140
1973	15125641
1974	15596715
1975	16181007
1976	16167456
1977	16172911
1978	15850430
1979	16248389
1980	15599614
1981	16079633
1982	15913635
1983	15806397
1984	15756728
1985	15909246
1986	16195628
1987	16014753
1988	16185669
1989	16001790
1990	16016384
1991	16360340
1992	117622696
1993	117872452
1994	109802405
1995	102534196
1996	98557180
1997	101369749
1998	84045386
1999	83889164
2000	89483049
2001	94661082
2002	95377739
2003	86142155
2004	93320624
2005	93479302
2006	93431277
2007	92528873
2008	98839168
2009	98384522
2010	86033356
2011	95712041
2012	90089300
2013	95758506
2014	95243020
2015	95607650
2016	97216431
2017	96255439
2018	93697370
2019	96322519
2020	98549362
2021	97864926
2022	95149212