Year	hectares
1961	1100000
1962	1100000
1963	1100000
1964	1100000
1965	1100000
1966	1100000
1967	1110000
1968	1110000
1969	1100000
1970	1100000
1971	1100000
1972	1120000
1973	1150000
1974	1170000
1975	1170000
1976	1200000
1977	1250000
1978	1250000
1979	1249000
1980	1270000
1981	1275000
1982	1300000
1983	1300000
1984	1300000
1985	1300000
1986	1300000
1987	1300000
1988	1300000
1989	1300000
1990	1300000
1991	1300000
1992	1300000
1993	1324000
1994	1354000
1995	1355000
1996	1361000
1997	1443430
1998	1525860
1999	1608290
2000	1690720
2001	1773150
2002	1855580
2003	1938000
2004	1669000
2005	1400000
2006	1506000
2007	1576000
2008	1581000
2009	1540600
2010	1500200
2011	1459800
2012	1419400
2013	1379000
2014	1412900
2015	1470000
2016	1487000
2017	1504000
2018	1521000
2019	1538000
2020	1554000
2021	1554000