Year	Hectares
1990	20934000
1991	20604000
1992	20274000
1993	19944000
1994	19614000
1995	19284000
1996	18954000
1997	18624000
1998	18294000
1999	17964000
2000	17634000
2001	17304000
2002	16974000
2003	16644000
2004	16314000
2005	15984000
2006	15654000
2007	15324000
2008	14994000
2009	14664000
2010	14334000
2011	14028000
2012	13722000
2013	13416000
2014	13110000
2015	12804000