Year	% of fertilizer production
1961	110.0916678292697
1962	98.1055698263577
1963	97.48512255422082
1964	113.2071798828997
1965	111.38221469352933
1966	111.60772212991535
1967	107.48207646978858
1968	117.03472198724239
1969	108.71226539851784
1970	116.9729604734657
1971	107.95350238371553
1972	103.4809385463545
1973	112.26081546006881
1974	93.60910578236619
1975	113.64632208263963
1976	115.29955391478235
1977	111.39720313215878
1978	120.16208288695793
1979	114.37026827916334
1980	118.47542744872533
1981	122.80191935093245
1982	138.64243990384617
1983	149.9540190906807
1984	156.36605230386053
1985	157.13483146067415
1986	143.3212808881461
1987	139.3389822520806
1988	146.20446644435182
1989	188.78628236245956
1990	236.50215341024082
1991	256.1668274766726
1992	262.28551832075124
1993	278.5765590016517
1994	264.9004936573437
1995	272.4831120151097
1996	330.6934324456788
1997	345.82935036266167
1998	344.3174969512195
1999	317.1900660739706
2000	235.25223069001032
2001	224.33614460017236
2002	228.47298684380343
2003	231.10899821917442
2004	252.37450000363157
2005	236.91279042418074
2006	224.67364743353627
2007	181.06978941684667
2008	215.56988108016074
2009	152.63854155032737
2010	282.4134603814883
2011	242.34266002729981
2012	267.7300119095363
2013	222.46564310932135
2014	383.40013690363287
2015	285.7796605119355
2016	282.4820303546609
2017	309.27974511651456
2018	304.17889752973474
2019	296.70484263726166
2020	277.33652136568605
2021	277.33652136568605