Year	hectares
1961	28804879
1962	29787311
1963	30286231
1964	29801381
1965	30004649
1966	29577086
1967	31177527
1968	29441437
1969	31297706
1970	32066815
1971	31989184
1972	32281255
1973	31598100
1974	32508024
1975	32631420
1976	33937268
1977	33977571
1978	33608558
1979	32539741
1980	33502698
1981	34580525
1982	34764359
1983	35619236
1984	34234811
1985	37792064
1986	38022431
1987	35955749
1988	41896339
1989	40914870
1990	40291275
1991	42093161
1992	44543685
1993	42578231
1994	49056834
1995	47368202
1996	48292613
1997	49526992
1998	49852614
1999	47951637
2000	46063785
2001	50570373
2002	49556903
2003	55088953
2004	48974569
2005	60549467
2006	56868251
2007	57722171
2008	60249776
2009	59519900
2010	64780183
2011	64844345
2012	62354634
2013	67983840
2014	69684266
2015	63028498
2016	71224348
2017	67856291
2018	70654576
2019	68832130
2020	70302407
2021	69438052
2022	70343363