Year	Hectares
1990	130000
1991	134100
1992	138200
1993	142300
1994	146400
1995	150500
1996	154600
1997	158700
1998	162800
1999	166900
2000	171000
2001	171000
2002	171000
2003	171000
2004	171000
2005	171000
2006	171000
2007	171000
2008	171000
2009	171000
2010	171000
2011	171000
2012	171000
2013	171000
2014	171000
2015	171000