Year	Hectares
1990	515680
1991	515680
1992	515680
1993	515680
1994	515680
1995	515680
1996	515680
1997	515680
1998	515680
1999	515680
2000	515680
2001	600740
2002	685810
2003	770870
2004	855940
2005	941000
2006	941000
2007	941000
2008	941000
2009	941000
2010	941000
2011	941000
2012	941000
2013	941000
2014	941000
2015	941000