Year	% of fertilizer production
1961	168.4817069663595
1962	159.47006383135383
1963	164.53727040076495
1964	180.9366414221158
1965	175.66705087584185
1966	175.52278541065573
1967	197.7819809915084
1968	192.318071220425
1969	191.67086549461496
1970	191.55122926981647
1971	184.45283073513295
1972	168.66150656250542
1973	176.14249378774343
1974	156.63258363422284
1975	178.58059525839303
1976	159.28571532819373
1977	167.7034887575544
1978	171.86272644483418
1979	181.48426090521608
1980	179.37345236233108
1981	155.27555329098612
1982	141.56784672152855
1983	139.9752126596334
1984	141.47533966288032
1985	133.96481484848098
1986	126.25641172405054
1987	111.47198147921753
1988	108.83356057524593
1989	116.54134290876685
1990	114.83953325828948
1991	113.22296940324091
1992	103.71047685681025
1993	101.32897487680874
1994	104.25995621250804
1995	100.92795000540724
1996	100.98094855913665
1997	107.19080698976701
1998	106.21278679102385
1999	106.80359221856503
2000	102.1504962629774
2001	101.85677298529589
2002	99.3122604976576
2003	103.07261206014354
2004	105.87031732580351
2005	110.94181959383452
2006	119.64925037761147
2007	122.85216479123658
2008	126.56016340304949
2009	136.67578025865276
2010	126.87389569512891
2011	123.61048209062554
2012	114.62252345160917
2013	121.53328187891827
2014	123.47419115707473
2015	124.17779403963829
2016	116.6096406266552
2017	115.75866512234764
2018	116.71296805718349
2019	118.12660902853281
2020	126.65987404023834
2021	118.81716413646872