Year	hectares
1961	624000
1962	724000
1963	729000
1964	850000
1965	867000
1966	885000
1967	819000
1968	777000
1969	746000
1970	744000
1971	775000
1972	776000
1973	789000
1974	801000
1975	827000
1976	950000
1977	1100000
1978	1154000
1979	1160000
1980	1182000
1981	1212000
1982	1251000
1983	1312000
1984	1334000
1985	1353000
1986	1306000
1987	1334000
1988	1365000
1989	1374000
1990	1370000
1991	1368000
1992	1362000
1993	1352000
1994	1321000
1995	1321000
1996	1321000
1997	1227000
1998	1346000
1999	1190000
2000	1174000
2001	1176500
2002	1179000
2003	1179400
2004	1174900
2005	1173400
2006	1175300
2007	1175000
2008	1197000
2009	1216056.2
2010	1236030
2011	1291800
2012	1319103.3
2013	1286780
2014	1312700
2015	1328110
2016	1323350
2017	1322710
2018	1327400
2019	1328800
2020	1340479.9
2021	1332800