Year	Hectares
1990	257000
1991	251000
1992	245000
1993	239000
1994	233000
1995	227000
1996	221000
1997	215000
1998	209000
1999	203000
2000	197000
2001	191000
2002	185000
2003	179000
2004	173000
2005	167000
2006	167000
2007	167000
2008	167000
2009	167000
2010	167000
2011	167000
2012	167000
2013	167000
2014	167000
2015	167000