Year	% of fertilizer production
1961	274.687255668491
1962	97.18567938357452
1963	146.8563067521625
1964	171.69811320754718
1965	145.12456248713198
1966	212.26914681598177
1967	361.2581336672168
1968	461.05384165991364
1969	230.0247434086101
1970	212.3986590368765
1971	173.1648599757899
1972	155.1695322084526
1973	133.07380394515513
1974	130.62124137761663
1975	169.33196771432065
1976	194.83244964848066
1977	220.94749878312516
1978	241.767059444249
1979	219.9674901165941
1980	169.32549204108838
1981	138.09778973659206
1982	127.76000361415598
1983	108.85069813517285
1984	112.09002956555187
1985	128.15422413434865
1986	147.08705507030962
1987	143.9060770661297
1988	143.38819436716085
1989	149.83974549539371
1990	154.5934172195058
1991	162.03177284129833
1992	161.24713226992097
1993	129.41382850398077
1994	127.77646439229915
1995	140.82023321816317
1996	136.93924225914827
1997	153.89869193860798
1998	136.70076339844604
1999	125.20440182083352
2000	128.93889275766017
2001	130.40310722953464
2002	131.92912705272255
2003	130.30534613301467
2004	129.67455749273174
2005	133.8314673663534
2006	136.231772705766
2007	130.05737920273185
2008	121.65767654124852
2009	143.17632575355242
2010	129.85173086082864
2011	126.2138991687278
2012	134.23394051257225
2013	141.2138248813302
2014	132.72624629704714
2015	119.90701555153997
2016	119.08230355742356
2017	131.63158668714948
2018	131.63158668714948
2019	124.44813411645686
2020	121.14602603665973
2021	121.14602603665973