Year	hectares
1961	36610000
1962	36935000
1963	37260000
1964	37585000
1965	37910000
1966	38230000
1967	38298000
1968	38366000
1969	38434000
1970	38502000
1971	38568000
1972	38690000
1973	38812000
1974	38934000
1975	39056000
1976	39176000
1977	39456000
1978	39736000
1979	40016000
1980	40296000
1981	40578000
1982	40778000
1983	40978000
1984	41178000
1985	41378000
1986	41579000
1987	41526000
1988	41473000
1989	41420000
1990	41367000
1991	41317409.9
1992	41266000
1993	41214000
1994	41162000
1995	41110000
1996	41059000
1997	41037000
1998	41015000
1999	40993000
2000	40971000
2001	40948000
2002	40615000
2003	40282000
2004	39949000
2005	39616000
2006	39283000
2007	38884000
2008	38485000
2009	38086000
2010	37687000
2011	37285000
2012	37534000
2013	37783000
2014	38032000
2015	38282000
2016	38530000
2017	38509000
2018	38690000
2019	38648000
2020	38235000
2021	38259000