Year	hectares
1961	30580000
1962	30690000
1963	30730000
1964	31200000
1965	32080000
1966	32260000
1967	32310000
1968	32010000
1969	30540000
1970	30700000
1971	30320000
1972	30340000
1973	31210000
1974	30530000
1975	30800000
1976	30460000
1977	30640000
1978	31150000
1979	31050000
1980	32110000
1981	31160000
1982	33140000
1983	31040000
1984	32110000
1985	31710000
1986	30140000
1987	31250000
1988	29920000
1989	30410000
1990	29750000
1991	29810000
1992	29920000
1993	30230000
1994	30250000
1995	30460000
1996	30550000
1997	31040000
1998	31120000
1999	31110000
2000	31040000
2001	31300000
2002	31220000
2003	31190000
2004	30310000
2005	30170000
2006	30320000
2007	30180000
2008	29460000
2009	29420000
2010	29390000
2011	30100000
2012	30240000
2013	30470000
2014	30440000
2015	30400000
2016	30990000
2017	31210000
2018	31160000
2019	30530000
2020	30930000
2021	30510000