Year	Hectares
1990	30727310
1991	30552900
1992	30378480
1993	30204070
1994	30029650
1995	29855240
1996	29680820
1997	29506410
1998	29331990
1999	29157580
2000	28983160
2001	28808750
2002	28634330
2003	28459920
2004	28285500
2005	28111090
2006	27936670
2007	27762260
2008	27587840
2009	27413430
2010	27239010
2011	27064600
2012	26890180
2013	26715770
2014	26541350
2015	26366940