Year	% of fertilizer production
1961	156.5236818588025
1962	152.04653166738476
1963	150.938824954573
1964	143.33685119447378
1965	142.31050897107286
1966	145.16607096155522
1967	145.48611111111111
1968	139.71206225680933
1969	140.5557479224377
1970	147.16350637239663
1971	156.52558027467674
1972	142.2193040052528
1973	156.2270450751252
1974	114.9518672765754
1975	116.95906432748538
1976	123.25878594249203
1977	114.60353679406732
1978	119.1653253621522
1979	108.28488372093024
1980	114.11111111111111
1981	121.2967843964154
1982	128.26327991129926
1983	129.998509761065
1984	127.96442687747036
1985	130.16037247801344
1986	131.8407960199005
1987	139.66040706173396
1988	134.9115020001096
1989	144.1446613088404
1990	149.06367041198502
1991	152.88732394366198
1992	145.5668604651163
1993	143.10344827586206
1994	153.45781466113417
1995	156.6118656182988
1996	146.2153846153846
1997	135.60334528076464
1998	128.37754472547812
1999	158.28707375099128
2000	156.52173913043478
2001	169.69147005444648
2002	160.7388316151203
2003	154.21769880972917
2004	164.40129449838187
2005	175.9629551673332
2006	174.871335869322
2007	159.78956055291934
2008	193.22884012539186
2009	229.46428571428572
2010	209.3795093795094
2011	176.5330188679245
2012	162.85875070343275
2013	420.1438848920863
2014	420.29379760609356
2015	366.6908387720571
2016	473.5172851252775
2017	412.55115961800817
2018	436.8188512518409
2019	439.1752577319588
2020	341.8342324668955
2021	355.0760176557136