Year	kilograms per hectare of arable land
1992	54.867990219261614
1993	39.91430081576966
1994	24.42752809995293
1995	24.601368087780475
1996	24.40228608763226
1997	26.003989126545786
1998	25.80503869928835
1999	25.01361242710913
2000	25.281738774760143
2001	24.64906423382812
2002	25.368578605208555
2003	26.471315305747844
2004	26.502937916438544
2005	27.682874038901826
2006	32.44602725169946
2007	34.340028207779994
2008	34.18364886929333
2009	38.23047516782718
2010	37.7579283331482
2011	39.743515408566566
2012	40.40419149142224
2013	42.355345227460774
2014	40.97727655491195
2015	41.547058767528455
2016	46.09352217499593
2017	46.9420874413172
2018	45.01277355998218
2019	48.68520972838117
2020	55.97410176947698
2021	53.260277977159205