Year	hectares
1961	6427204
1962	6870641
1963	6897698
1964	6860640
1965	6862581
1966	8008240
1967	7019560
1968	7576759
1969	7974893
1970	7639240
1971	8123480
1972	7764720
1973	8878000
1974	8590640
1975	9737720
1976	9422400
1977	9883153
1978	10405794
1979	10244661
1980	10785702
1981	10845041
1982	10491858
1983	11431549
1984	11660448
1985	12051539
1986	11201914
1987	10673443
1988	11876093
1989	11778072
1990	10536438
1991	10657182
1992	10587015
1993	10386331
1994	10519979
1995	10533970
1996	10747055
1997	11242739
1998	11025860
1999	11295454
2000	11228129
2001	11455364
2002	10941834
2003	11434393
2004	11282003
2005	11475657
2006	11342030
2007	11875069
2008	11946683
2009	12471675
2010	13328078
2011	13338804
2012	13338796
2013	13080548
2014	12051561
2015	11116700
2016	11968338
2017	12032106
2018	12011701
2019	11125581
2020	12350498
2021	12520319
2022	12847242