Year	hectares
1961	37999265
1962	39453162
1963	39596336
1964	40223815
1965	42142505
1966	40242068
1967	42181747
1968	41162795
1969	46002135
1970	43702657
1971	42942406
1972	42007727
1973	44779840
1974	44311226
1975	43013819
1976	46035666
1977	43918346
1978	43653200
1979	41062157
1980	42875635
1981	41637876
1982	41366618
1983	42620928
1984	42982069
1985	50652569
1986	54520978
1987	51875546
1988	57905358
1989	57308605
1990	57831273
1991	63372931
1992	66624561
1993	66733186
1994	71094537
1995	68039767
1996	68031925
1997	69163315
1998	71151510
1999	66990505
2000	65511851
2001	67217813
2002	70223253
2003	76031076
2004	69762915
2005	82771308
2006	80281796
2007	80282730
2008	82155027
2009	77594707
2010	86339943
2011	86319372
2012	83808720
2013	91820595
2014	95870991
2015	87156574
2016	97462233
2017	95539090
2018	98260079
2019	95886846
2020	100501250
2021	98663362
2022	97955614