Year kilograms per hectare of arable land 1992 148.8372093023256 1993 87.45684695051784 1994 82.3529411764706 1995 82.93838862559242 1996 76.57213316892725 1997 63.041923551171394 1998 47.03061224489796 1999 13.520408163265307 2000 11.35204081632653 2001 15.45338441890166 2002 40.97923175416133 2003 22.66777493606138 2004 25.04823907455013 2005 16.498401585204757 2006 35.193772048846675 2007 16.196608579088473 2008 11.033886639676115 2009 12.127282406175137 2010 9.592783505154639 2011 6.555718514531753 2012 9.159233685350664 2013 12.491720821419287 2014 21.068195451137214 2015 21.98799469111969 2016 11.53267523364486 2017 17.72158968850698 2018 14.71882296878723 2019 91.93474295190713 2020 96.74711698832499 2021 90.36482100238663