Year	Hectares
1990	528000
1991	528000
1992	528000
1993	528000
1994	528000
1995	528000
1996	528000
1997	528000
1998	528000
1999	528000
2000	528000
2001	528400
2002	528800
2003	529200
2004	529600
2005	530000
2006	532000
2007	534000
2008	536000
2009	538000
2010	540000
2011	545800
2012	551600
2013	557400
2014	563200
2015	569000