Year	% of fertilizer production
1961	117.02801941716639
1962	146.7007234366563
1963	152.93868846397254
1964	146.60074592477056
1965	146.7081932515658
1966	152.95809078509546
1967	158.87339396291318
1968	173.53350928411993
1969	161.44372573521855
1970	158.58835735739714
1971	149.46157278306475
1972	149.00609500023813
1973	151.93854470232446
1974	139.24852360554763
1975	141.35075696636684
1976	136.67615750998988
1977	138.00722435552356
1978	136.17045964514938
1979	134.43566800829143
1980	132.2233038303872
1981	127.90441154723621
1982	126.2374151116727
1983	125.56453796473416
1984	126.40290615973407
1985	120.05242527659645
1986	118.31297402727242
1987	118.53050608161819
1988	120.29693630535778
1989	118.74511232033765
1990	122.08525955807261
1991	124.1875279645808
1992	100.89094570888648
1993	99.1351317259992
1994	101.23394427714278
1995	98.63601608855983
1996	99.9504372034154
1997	103.59462220673207
1998	103.9752962403962
1999	101.17556938431574
2000	98.49638495269214
2001	97.5507942735245
2002	99.10898532772053
2003	97.21099005198568
2004	97.61759106331387
2005	96.52432754728129
2006	100.49934564339668
2007	100.19329912266593
2008	99.27843838193115
2009	104.93364158243732
2010	96.76208628378414
2011	98.43613611646086
2012	97.48555468865653
2013	98.93161047721041
2014	95.2180330325279
2015	91.5188211462335
2016	95.08113086614462
2017	97.92757053637023
2018	99.11342389528394
2019	90.28465363032986
2020	97.35987014748892
2021	95.46091563371967