Year	Hectares
1990	13809490
1991	14126240
1992	14442980
1993	14759730
1994	15076470
1995	15393220
1996	15709960
1997	16026710
1998	16343450
1999	16660200
2000	16976940
2001	17037970
2002	17099000
2003	17160030
2004	17221060
2005	17282090
2006	17475110
2007	17668130
2008	17861160
2009	18054180
2010	18247200
2011	18281330
2012	18315470
2013	18349600
2014	18383740
2015	18417870