Year	% of fertilizer production
1961	107.84896392848647
1962	111.33369053927242
1963	109.64967694355401
1964	91.93930147803442
1965	77.82142310056638
1966	74.07438502224835
1967	72.96937416777631
1968	76.81513995826438
1969	75.56914712878016
1970	75.85776668746101
1971	80.68247541931753
1972	78.24361193853694
1973	82.90662662913603
1974	87.3536727289323
1975	78.1428952870855
1976	83.03691111643307
1977	72.86639266388532
1978	77.67365124432273
1979	80.35079620849012
1980	77.36703612003673
1981	69.27944607829083
1982	77.28651094133703
1983	75.80589756294577
1984	77.80300257359382
1985	80.68003809419241
1986	86.44471001023526
1987	92.67417612227929
1988	99.2936857095841
1989	99.4448590341245
1990	109.47305143718282
1991	112.32114642967358
1992	99.65190131740891
1993	100.68586634524415
1994	101.76883679180526
1995	97.94025157232704
1996	115.69336324053306
1997	103.10100269014428
1998	123.02494802494803
1999	120.26765163297044
2000	119.13313379891363
2001	126.40607909734615
2002	135.93014053339684
2003	124.59598497094674
2004	118.04729302111501
2005	103.73748106617231
2006	112.70653536057193
2007	117.18536744322235
2008	89.16995671279992
2009	106.14500368481148
2010	112.1510308769853
2011	95.72401334860061
2012	90.7532294049602
2013	104.52840133574604
2014	117.49498306190655
2015	112.73485050959403
2016	110.45305917865534
2017	120.35450662536525
2018	114.5928260290021
2019	113.73838803327243
2020	113.73838803327243
2021	113.73838803327243