Year	kilograms per hectare of arable land
1992	24.242424242424242
1993	20.71005917159763
1994	20.6794682422452
1995	20.64896755162242
1996	22.844509948415624
1997	22.827687776141385
1998	21.38088235294118
1999	20.519736842105264
2000	21.533185840707965
2001	20.549107142857142
2002	7.050557620817844
2003	24.710565476190474
2004	21.68215892053973
2005	24.628504672897197
2006	22.19677494741762
2007	22.4546875
2008	18.973817897616257
2009	22.068181818181817
2010	22.659457765240557
2011	19.16843012775296
2012	24.316152279492403
2013	27.4302025494643
2014	32.00062470716851
2015	10.403584257379354
2016	12.693384065848734
2017	7.690347880105608
2018	21.229813664596275
2019	22.669721920149136
2020	22.64641913935063
2021	22.64641913935063