Year	% of fertilizer production
1961	100.16865169244065
1962	92.13956188322997
1963	102.00970160566239
1964	95.99978355271168
1965	101.85743652299631
1966	121.04278516036501
1967	136.9998014099891
1968	131.66939699372233
1969	101.7233272205765
1970	85.27161377130409
1971	89.83643522894405
1972	98.97057877370197
1973	96.858911966895
1974	72.63427797505818
1975	73.94513814555128
1976	72.72166514300496
1977	75.4015039367517
1978	76.20802290842826
1979	85.53237192521455
1980	87.61351636747624
1981	103.32040508724339
1982	101.36419394603205
1983	97.4448377609612
1984	89.56774491717371
1985	88.10467953334437
1986	89.02395649401352
1987	74.88802054931045
1988	79.57209072804497
1989	73.69864239919839
1990	71.51478953831246
1991	59.151429857998835
1992	32.976473109540734
1993	29.532711088438607
1994	30.251075268817207
1995	13.808463251670378
1996	20.97934190426864
1997	24.83273269541444
1998	37.89237668161435
1999	37.209711684370255
2000	30.433909200482123
2001	46.70720747009046
2002	97.71015620600146
2003	107.71595159515952
2004	54.91225912259122
2005	45.13951705634342
2006	58.089891586271946
2007	67.77004197147491
2008	75.25912099323689
2009	129.96563981042655
2010	81.86535630698847
2011	85.60237816270306
2012	81.12244897959184
2013	128.279186798905
2014	114.93273797927792
2015	133.99317440319837
2016	151.38200848978795
2017	55.6889981208198
2018	67.7115733637345
2019	73.03865364238924
2020	75.97899818252
2021	71.17708944224653