Year	Hectares
1990	952900
1991	955650
1992	958410
1993	961160
1994	963920
1995	966670
1996	969420
1997	972180
1998	974930
1999	977690
2000	980440
2001	983800
2002	987170
2003	990530
2004	993900
2005	997260
2006	996390
2007	995510
2008	994640
2009	993770
2010	992900
2011	997760
2012	1002620
2013	1007480
2014	1012340
2015	1017200