Year	Hectares
1990	4277000
1991	4277000
1992	4277000
1993	4277000
1994	4277000
1995	4277000
1996	4277000
1997	4277000
1998	4277000
1999	4277000
2000	4277000
2001	4145000
2002	4013000
2003	3881000
2004	3749000
2005	3617000
2006	3601600
2007	3586200
2008	3570800
2009	3555400
2010	3540000
2011	3524000
2012	3508000
2013	3492000
2014	3476000
2015	3460000