Year	kilograms per hectare of arable land
2006	18.701149425287355
2007	15.632183908045977
2008	14.791907514450868
2009	11.329479768786127
2010	14.354651162790697
2011	12.54913294797688
2012	12.490872093023258
2013	324.9025641025641
2014	276.9163802978236
2015	262.1609195402299
2016	285.2077777777778
2017	233.64347826086956
2018	246.7967391304348
2019	292.82444444444445
2020	306.867032967033
2021	311.9640449438203