Year	% of fertilizer production
1961	289.6498455200824
1962	90.01091041338344
1963	110.70815041038367
1964	126.10275038920602
1965	124.43216827791352
1966	170.15132117447058
1967	212.33849259757739
1968	285.4222300822354
1969	284.4572250179727
1970	214.05993029256
1971	303.28970439101136
1972	182.33813433840356
1973	163.29744039498473
1974	220.04038927958922
1975	182.70969743373112
1976	190.54355919583023
1977	245.38149106736074
1978	211.65433698821852
1979	253.20415874299349
1980	272.325794698463
1981	217.6179952675668
1982	186.84879337936366
1983	167.10738197076066
1984	166.3475381172524
1985	157.747431964794
1986	160.58908511955656
1987	150.42813241335347
1988	147.52768770243696
1989	155.38981009726726
1990	156.36079058441263
1991	170.51133222775013
1992	155.3760567526101
1993	145.1458490886361
1994	162.0915480369079
1995	163.24464642485296
1996	160.07964384996214
1997	166.97315959133186
1998	143.1612893821508
1999	160.47415176837876
2000	150.9904035309544
2001	142.44533172138796
2002	168.1244755988156
2003	174.4818248869663
2004	195.39562965673454
2005	201.21358159501375
2006	225.94352798177243
2007	214.99644282443697
2008	259.6317641996478
2009	301.28162774442893
2010	317.6918944032026
2011	400.46914639582695
2012	433.8649843847424
2013	416.59595726850546
2014	488.0627854694051
2015	579.3140193046866
2016	561.6654762031114
2017	917.0268234587451
2018	1158.9254723545803
2019	1187.2327215060905
2020	1268.645871577037
2021	1210.83498518062