Year	Hectares
1992	172600
1993	172900
1994	173200
1995	173500
1996	173800
1997	174100
1998	174400
1999	174700
2000	175000
2001	175200
2002	175400
2003	175600
2004	175800
2005	176000
2006	175600
2007	175200
2008	174800
2009	174400
2010	174000
2011	174000
2012	174000
2013	174000
2014	174000
2015	174000