Year	% of fertilizer production
1961	31.417697431018077
1962	77.97957823619079
1963	101.56601249126534
1964	85.8625469667676
1965	90.99230800759635
1966	80.21976973778342
1967	82.07712679770698
1968	80.42512795661092
1969	75.25305781101846
1970	66.69337543892725
1971	59.113392440503965
1972	53.850477701772846
1973	70.2880658436214
1974	66.55346820809248
1975	70.55424528301887
1976	62.74122807017544
1977	58.58475894245723
1978	62.10658833403273
1979	58.479771148344916
1980	51.09857978279031
1981	63.725876329263485
1982	60.69615663524293
1983	58.25070821529745
1984	57.272421901242865
1985	52.41309483631454
1986	51.52416356877323
1987	53.338449731389105
1988	51.717557251908396
1989	51.36616095724457
1990	72.91040288634997
1991	42.55514705882353
1992	41.13062357149179
1993	47.96029333853833
1994	33.009037117298995
1995	25.519662921348313
1996	29.0633608815427
1997	39.39962476547842
1998	87.74581013756593
1999	37.684846557481315
2000	31.426703490329654
2001	41.369752867976764
2002	39.00992822966507
2003	46.11839592616168
2004	37.7587440381558
2005	36.16775103864545
2006	34.59992372234935
2007	36.5643059490085
2008	41.543319415448856
2009	43.52159705912386
2010	65.23834649920201
2011	72.87884659538895
2012	61.73097822582424
2013	66.56363352275977
2014	58.96249508177597
2015	111.43875511558343
2016	129.33596647809458
2017	125.4590630768866
2018	135.9112868852496
2019	84.80589398762596
2020	57.39381827292214
2021	135.37615031909965