Year	hectares
1961	888000
1962	941000
1963	950000
1964	987885
1965	982650
1966	1101740
1967	1122410
1968	1150785
1969	1124060
1970	1107060
1971	1120725
1972	1130745
1973	1160770
1974	1178920
1975	1190505
1976	1179514
1977	1291359
1978	1257275
1979	1281582
1980	1330635
1981	1315757
1982	1307950
1983	1318715
1984	1304915
1985	1326020
1986	1338275
1987	1240524
1988	1265600
1989	1301190
1990	1326929
1991	1295564
1992	1339554
1993	1415487
1994	1306641
1995	1342455
1996	1337213
1997	1370461
1998	1391686
1999	1404437
2000	1406830
2001	1411893
2002	1416531
2003	1420599
2004	1440370
2005	1509104
2006	1522018
2007	1536102
2008	1549296
2009	1562974
2010	1577101
2011	1463801
2012	1523161
2013	1248074
2014	1445255
2015	1327084
2016	1451037
2017	1413852
2018	1607227
2019	1731359
2020	1804520
2021	1729233
2022	1719556