Year	Hectares
1990	489510
1991	485100
1992	480680
1993	476270
1994	471850
1995	467440
1996	463020
1997	458610
1998	454190
1999	449780
2000	445360
2001	445970
2002	446580
2003	447190
2004	447790
2005	448400
2006	442760
2007	437110
2008	431460
2009	425820
2010	420170
2011	418420
2012	416670
2013	414910
2014	413160
2015	411410