Year Hectares 1990 287000 1991 303310 1992 319620 1993 335930 1994 352240 1995 368550 1996 384850 1997 401160 1998 417470 1999 433780 2000 450090 2001 452650 2002 455200 2003 457760 2004 460310 2005 462870 2006 466180 2007 469490 2008 472790 2009 476100 2010 479410 2011 482720 2012 486030 2013 489330 2014 492640 2015 495950