Year	% of fertilizer production
1992	56.27666936451024
1993	50.51637936288543
1994	35.39541290638309
1995	31.57488499346643
1996	31.136417250184667
1997	33.1030773132688
1998	33.63207999603107
1999	29.590636511552034
2000	29.278835243001005
2001	26.804985191414225
2002	25.56484582762046
2003	24.704997987010998
2004	22.437463560007675
2005	22.15723434120217
2006	26.934509320908468
2007	26.260293474033443
2008	27.11355122938807
2009	44.83927947298402
2010	30.022342864987113
2011	29.875069259368743
2012	32.393796985202606
2013	32.635213207820875
2014	28.77921823063711
2015	28.948639295086796
2016	31.54759044896499
2017	29.813606691150202
2018	28.105336467324364
2019	29.29274499605596
2020	32.07180715775057
2021	29.32407578440966