Year	% of fertilizer production
1961	165.95309186005807
1962	145.72077998421221
1963	157.746808200973
1964	196.86626946595828
1965	203.2725720059733
1966	234.04138582562723
1967	256.24997367914955
1968	243.16914551609392
1969	213.82389878187922
1970	210.57949652540682
1971	212.84719034374746
1972	192.59921114520446
1973	189.47223638248542
1974	165.61267782689768
1975	185.08232923947153
1976	152.38957026643726
1977	170.75449030708722
1978	181.3388964407391
1979	185.21030702239716
1980	185.16077854916225
1981	149.06249699764615
1982	133.5989279815299
1983	139.58978649992838
1984	147.25278346955437
1985	147.47891296053092
1986	139.2327718464936
1987	121.6793096018227
1988	122.73359268315603
1989	135.23269618465127
1990	136.02908859154704
1991	133.10144945069985
1992	128.16504605032742
1993	132.08269877000737
1994	129.20896364440108
1995	125.47064178842399
1996	130.17301522206907
1997	127.5705162074666
1998	125.03779229702454
1999	127.2409743819144
2000	116.98149323883578
2001	121.66748789040616
2002	118.64338333240921
2003	123.45361921010951
2004	125.0887491046924
2005	136.11032180739818
2006	152.6403895922579
2007	166.03989489480196
2008	180.1456148307194
2009	178.7393515713306
2010	170.1666654468875
2011	172.03592252455454
2012	163.97264339031895
2013	155.97814821671903
2014	160.86777229874855
2015	154.09160090143803
2016	148.52396642148406
2017	153.15151705483137
2018	159.60150250362457
2019	161.23533534129558
2020	177.0032964091558
2021	165.9200652631755