Year	% of fertilizer production
1975	5430
1976	2633.333333333333
1977	1804.8780487804877
1978	1830.7692307692307
1979	1900
1980	3344.2307692307695
1981	2244.2105263157896
1982	3042.8571428571427
1983	6178.571428571428
1984	5324
1985	4452
1986	907.0671378091873
1987	182.5310559006211
1988	102.91139240506328
1989	114.25431711145997
1990	122.21611721611723
1991	134.7143753923415
1992	118.53448275862068
1993	139.6969696969697
1994	187.69816106531388
1995	131.74946004319654
1996	140.14539579967692
1997	298.05194805194805
1998	200.24539877300614
1999	239.57142857142858
2009	213.50775513309915
2010	1086.4494042805543
2011	311.2307821088758
2012	171.86642875350498
2013	283.9054444444444
2014	413.12492327365715
2015	221.86128621580957
2016	121.31495151704723
2017	112.32885308705372
2018	94.73974872290486
2019	94.73974872290486
2020	94.73974872290486
2021	94.73974872290486