Year	Hectares
1990	3322000
1991	3322000
1992	3322000
1993	3322000
1994	3322000
1995	3322000
1996	3322000
1997	3322000
1998	3322000
1999	3322000
2000	3322000
2001	3589400
2002	3856800
2003	4124200
2004	4391600
2005	4659000
2006	4687800
2007	4716600
2008	4745400
2009	4774200
2010	4803000
2011	4831600
2012	4860200
2013	4888800
2014	4917400
2015	4946000