Year	hectares
1961	1715000
1962	1724500
1963	1725500
1964	1742000
1965	1786000
1966	1794700
1967	1821090
1968	1909470
1969	1951485
1970	1994890
1971	2009823
1972	1973188
1973	2092083
1974	2124453
1975	2152188
1976	2183815
1977	2203319
1978	2232940
1979	2191730
1980	2247630
1981	2312590
1982	2331630
1983	2470000
1984	2586530
1985	2636050
1986	2622990
1987	2825960
1988	2980760
1989	3006250
1990	3045230
1991	2836790
1992	3028360
1993	3023480
1994	3159609
1995	3228020
1996	3252900
1997	3270210
1998	3296550
1999	3298929
2000	3287676
2001	3298297
2002	3334259
2003	3361975
2004	3337317
2005	3371013
2006	3261012
2007	3424567
2008	3434689
2009	3353773
2010	3408740
2011	3513830
2012	3373609
2013	3405458
2014	3418447
2015	3314598
2016	3495877
2017	3407739
2018	3451186
2019	3401774
2020	3435948
2021	3469359
2022	3457671