Year	% of fertilizer production
1961	351.2282915244174
1962	170.9127159946832
1963	213.24870316074362
1964	265.98116795485214
1965	245.06433424895187
1966	297.0676127447636
1967	390.7096544986233
1968	422.4295089153333
1969	217.2809004557422
1970	192.98047434315808
1971	162.33018026956964
1972	149.58577999284228
1973	134.32745669837328
1974	133.2564428341348
1975	172.4248995617239
1976	195.4766408739611
1977	226.88757996759435
1978	235.21012192641976
1979	219.70138986203295
1980	188.60318509218266
1981	165.02704372169092
1982	148.86479535275598
1983	132.933292589964
1984	134.69182451463533
1985	146.40852495172533
1986	161.44206270994502
1987	145.95571357815535
1988	135.3982273946549
1989	142.5853022643718
1990	146.69228206101798
1991	154.13890732771895
1992	108.22235481480175
1993	103.08846008642318
1994	111.38510126221207
1995	110.97129479188305
1996	105.6887170187747
1997	136.08951753056357
1998	126.83490051043842
1999	119.09356013704394
2000	120.76575972726135
2001	125.51100797064278
2002	129.59080583196877
2003	128.6407621072864
2004	121.18826413386688
2005	128.54505429309054
2006	124.00406845974516
2007	116.2792193097853
2008	110.10518137781536
2009	130.51213388151956
2010	129.55326833992956
2011	119.21343445267054
2012	119.17885611124952
2013	141.26118741375052
2014	134.05955666317377
2015	120.98853833411054
2016	119.22907306547413
2017	131.7560604224938
2018	124.1369260115947
2019	123.485448238868
2020	121.44549699576562
2021	116.3337987818167