Year	hectares
1961	381000
1962	381000
1963	380000
1964	380000
1965	380000
1966	380000
1967	378000
1968	378000
1969	378000
1970	376000
1971	376000
1972	375800
1973	371650
1974	367500
1975	383500
1976	399500
1977	401200
1978	402900
1979	420000
1980	400000
1981	415500
1982	438000
1983	446500
1984	456000
1985	469000
1986	465000
1987	420000
1988	374000
1989	378500
1990	380000
1991	381000
1992	387087.2
1993	390784.5
1994	391458.6
1995	394148.1
1996	396831.5
1997	397578.3
1998	400333.1
1999	403094.9
2000	403879.1
2001	401700
2002	401400
2003	415000
2004	420000
2005	425000
2006	399000
2007	431000
2008	453000
2009	471000
2010	499000
2011	471000
2012	509000
2013	547000
2014	590000
2015	478000
2016	541000
2017	491000
2018	518500
2019	546000
2020	527000
2021	616000