Year	% of fertilizer production
1992	61.91046719930375
1993	66.58160972853888
1994	61.185960453862144
1995	52.10231471201692
1996	56.80827501939437
1997	64.02694120396109
1998	67.65751357337699
1999	63.01662426824789
2000	59.48711159995984
2001	66.13480748906824
2002	70.30632016189843
2003	69.4857792802338
2004	59.73587530932034
2005	59.95581544679728
2006	65.52827129503628
2007	67.18135804831913
2008	68.69847534362698
2009	71.04203453522578
2010	73.89702226032037
2011	69.6023669149655
2012	69.82451607429613
2013	77.01958422355146
2014	71.5784193946493
2015	74.1054223633974
2016	82.53808356474038
2017	74.30187632224225
2018	77.52856547318302
2019	74.63834819597928
2020	67.70553431883428
2021	77.37078632757239