Year	Hectares
1990	52026000
1991	51738500
1992	51451000
1993	51163500
1994	50876000
1995	50588500
1996	50301000
1997	50013500
1998	49726000
1999	49438500
2000	49151000
2001	48863400
2002	48575800
2003	48288200
2004	48000600
2005	47713000
2006	47671400
2007	47629800
2008	47588200
2009	47546600
2010	47505000
2011	47340600
2012	47176200
2013	47011800
2014	46847400
2015	46683000