Year	Hectares
1990	46568000
1991	46568000
1992	46568000
1993	46568000
1994	46568000
1995	46568000
1996	46568000
1997	46568000
1998	46568000
1999	46568000
2000	46568000
2001	46568000
2002	46568000
2003	46568000
2004	46568000
2005	46568000
2006	46568000
2007	46568000
2008	46568000
2009	46568000
2010	46568000
2011	46403600
2012	46239200
2013	46074800
2014	45910400
2015	45746000