Year	% of fertilizer production
1961	146.98456869476666
1962	124.65742705109034
1963	128.54470355072328
1964	149.7470368797866
1965	137.52322839270064
1966	137.3637424619017
1967	127.50187509553213
1968	129.06506263928856
1969	134.6696360034103
1970	139.57715399051972
1971	138.629765367973
1972	127.26024501082047
1973	156.4360619852468
1974	152.71883707568506
1975	139.53473267155246
1976	139.31742632867142
1977	140.4955768234602
1978	145.81520380095023
1979	133.0816077953715
1980	134.31712962962962
1981	137.60404280618312
1982	137.8156804733728
1983	125.89792107065601
1984	144.53781512605042
1985	127.08333333333333
1986	139.1304347826087
1987	132.05035971223023
1988	143.32042594385285
1989	146.51253918495297
1990	148.78577623590635
1991	158.47488254427176
1992	175.93811718235682
1993	206.6152575957728
1994	197.2560975609756
1995	210.80914144533662
1996	212.9032258064516
1997	184.52991452991455
1998	187.6595744680851
1999	169.26713947990544
2000	164.89275367023478
2001	199.3065693430657
2002	189.13513041525815
2003	204.43356156991595
2004	259.4340330380016
2005	311.23339299011093
2006	342.2267885323514
2007	201.82676019344717
2008	280.75875178203705
2009	195.15501400438046
2010	194.0532741398446
2011	231.51660606060608
2012	239.5115625
2013	211.71743067345784
2014	247.01052939455982
2015	284.95013351134844
2016	295.1423404255319
2017	298.98367892976586
2018	339.5959439528023
2019	341.08104283054
2020	318.8023939712583
2021	312.00432877672625