Year	Hectares
1990	17234000
1991	16824300
1992	16414600
1993	16004900
1994	15595200
1995	15185500
1996	14775800
1997	14366100
1998	13956400
1999	13546700
2000	13137000
2001	12727400
2002	12317800
2003	11908200
2004	11498600
2005	11089000
2006	10679400
2007	10269800
2008	9860200
2009	9450600
2010	9041000
2011	8631400
2012	8221800
2013	7812200
2014	7402600
2015	6993000