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