Year	hectares
1961	14378586.3
1962	15515793.3
1963	15383456.4
1964	16296054.9
1965	17327635.2
1966	18785364.6
1967	19273837.5
1968	21411462.9
1969	19636044
1970	18493980.6
1971	16857000
1972	17047000
1973	14924000
1974	14778000
1975	13573000
1976	14472000
1977	14843000
1978	16635000
1979	17270000
1980	17786000
1981	18226000
1982	19443000
1983	19249000
1984	21739000
1985	20963000
1986	20677000
1987	19600000
1988	18136000
1989	17527000
1990	16956000
1991	17208000
1992	16226000
1993	17111000
1994	17843000
1995	16837000
1996	19193000
1997	20904000
1998	21350000
1999	22994000
2000	23473000
2001	24200000
2002	23735000
2003	23240000
2004	25743000
2005	26402000
2006	24228000
2007	23125000
2008	23994100
2009	27141600
2010	25591750
2011	31694900
2012	31637400
2013	31220800
2014	31960300
2015	31090700
2016	30057000
2017	30752000
2018	30974000
2019	30573000
2020	30644000
2021	31265000