Year	hectares
1961	4252000
1962	4154000
1963	4138000
1964	4180000
1965	4167000
1966	4166000
1967	4146000
1968	4154000
1969	4158000
1970	4142000
1971	4132000
1972	4128000
1973	4120000
1974	4098000
1975	3957000
1976	3940000
1977	3937000
1978	3926000
1979	3897000
1980	3827000
1981	3824000
1982	3818000
1983	3812000
1984	3807000
1985	3810000
1986	3819000
1987	3825000
1988	3840000
1989	3848000
1990	3856000
1991	3864000
1992	4047000
1993	4063000
1994	4001000
1995	3998000
1996	4203000
1997	4298000
1998	3536000
1999	3578000
2000	3526000
2001	3467000
2002	3355000
2003	3323000
2004	3313000
2005	3173000
2006	3132000
2007	3085000
2008	3088000
2009	3146000
2010	3186000
2011	3250000
2012	3317000
2013	3479000
2014	3486000
2015	3509700
2016	3496000
2017	3489080
2018	3478000
2019	3476000
2020	3492000
2021	3500475.5