Year % of total agricultural land 2004 4.297460137811657 2005 4.304911800993698 2006 3.879983971148066 2007 4.086114819759679 2008 4.392782095327041 2009 4.567937445421396 2010 4.5481070951004225 2011 4.6057308379673 2016 5.416356275303643 2017 5.709169304689402 2018 5.5860930681629934 2019 5.958751660269634