Year Hectares 1990 240700 1991 239990 1992 239280 1993 238570 1994 237860 1995 237150 1996 236440 1997 235730 1998 235020 1999 234310 2000 233600 2001 232880 2002 232160 2003 231440 2004 230720 2005 230000 2006 229280 2007 228560 2008 227840 2009 227120 2010 226400 2011 228020 2012 229630 2013 231250 2014 232860 2015 234480