Year	% of fertilizer production
1961	174.22689592642965
1962	187.73926963755525
1963	178.6985954134733
1964	178.32213750801253
1965	134.42610003760814
1966	129.84561111707265
1967	152.2162421684676
1968	156.87559702404556
1969	148.67643115271164
1970	161.7690650331881
1971	172.8168623563588
1972	183.26522297953804
1973	195.73920391545815
1974	217.37732813412526
1975	236.47991526875688
1976	183.3853032577215
1977	196.54427786269474
1978	180.83761428767778
1979	173.7379416293304
1980	161.37506026514356
1981	160.70630671177463
1982	170.88332869300362
1983	170.01045973537728
1984	167.79283842410095
1985	149.84953134642285
1986	155.48179926875625
1987	146.58426219913986
1988	182.03891100552204
1989	152.57497152979883
1990	122.31408526713439
1991	119.59259259259258
1992	112.96058333084302
1993	140.4367650587953
1994	124.64163686928885
1995	149.8485822906406
1996	157.20204568229724
1997	153.68405901403383
1998	158.7152034261242
1999	142.4432005268357
2000	132.55689764780675
2001	152.36769644056415
2002	207.96253818991693
2003	213.83237295483218
2004	170.2559476829406
2005	125.9227374061201
2006	150.9933774834437
2007	227.3868895985074
2008	208.75712731946868
2009	154.952282917808
2010	158.72708417254472
2011	136.40543489832854
2012	175.7505356669957
2013	166.47803736762265
2014	142.46706126447754
2015	144.35316868679132
2016	174.69583775954888
2017	192.65641194340893
2018	190.77907847405984
2019	184.3173545806498
2020	191.47397554886484
2021	195.90716151683395