Year	% of fertilizer production
1961	106.06123937995548
1962	146.80221832967862
1963	146.28931506182752
1964	137.13601598874905
1965	135.26449291391998
1966	142.1391635485633
1967	149.20045083039986
1968	165.98025891820333
1969	159.5195675945548
1970	156.15058664245203
1971	141.55966399695663
1972	142.08300204457237
1973	141.85897797408126
1974	135.07710824673305
1975	133.82347157006694
1976	130.46400815123258
1977	129.60485737920146
1978	127.30820288642255
1979	125.97451498640498
1980	125.32517792115894
1981	119.8065279491479
1982	119.7549006160185
1983	121.82692703095543
1984	124.45331513875429
1985	119.61631832643408
1986	117.19440855955452
1987	122.13201105684475
1988	126.45176842927054
1989	122.89461625656755
1990	128.75964836188007
1991	133.65312110279368
1992	104.83707350143133
1993	100.0762022287072
1994	106.20114403428197
1995	105.5292013877997
1996	105.68862291908665
1997	110.90088031689338
1998	108.80924846599787
1999	103.47299735911488
2000	100.53244639720889
2001	98.3903570399518
2002	101.80233211263301
2003	97.51353174206307
2004	96.58603311067213
2005	92.91010283974518
2006	92.17054365559368
2007	91.10242835124804
2008	89.18557042740395
2009	90.60472804939236
2010	85.45410692754871
2011	88.90770877018555
2012	88.12358712826376
2013	87.19477292872557
2014	84.58966363790742
2015	79.82929128422042
2016	83.25104020281758
2017	88.0045968682184
2018	88.46319961073567
2019	76.7263479376436
2020	82.1534780293566
2021	80.45762196952137