Year	hectares
1961	2708623
1962	2911300
1963	2891420
1964	2805810
1965	2862350
1966	1921790
1967	2600270
1968	3017870
1969	3012480
1970	3228170
1971	2952400
1972	3517530
1973	3232850
1974	2973050
1975	3171240
1976	3349880
1977	2780260
1978	2624990
1979	2886660
1980	3181380
1981	2836390
1982	2569300
1983	2227560
1984	2670070
1985	3198670
1986	2871100
1987	2719150
1988	1808540
1989	2638170
1990	2365999
1991	3418278
1992	3530507
1993	1959520
1994	1287357
1995	2579551
1996	3663945
1997	1115670
1998	3575718
1999	1888946
2000	1058184
2001	2402748
2002	1845217
2003	2901720
2004	3000731
2005	2350627
2006	2672232
2007	2873873
2008	1485477
2009	3176367
2010	2856567
2011	2584734
2012	3062449
2013	2709432
2014	2509193
2015	2686241
2016	3376449
2017	3512157
2018	3107776
2019	3187485
2020	2889582
2021	1941867
2022	2929807