Year	% of fertilizer production
1961	153.9834045671578
1962	160.0741962661154
1963	166.39540860030837
1964	206.61090773054002
1965	219.96753474315162
1966	242.0497031009457
1967	252.4192225684763
1968	226.83586704457613
1969	207.69150162422721
1970	212.76635866490668
1971	214.34449374747882
1972	199.87723859041017
1973	206.5264842840512
1974	169.54144156015286
1975	191.15828637084863
1976	145.6002045425491
1977	160.3149723839379
1978	173.0522765598651
1979	175.47672135512
1980	183.05320275277924
1981	148.02938886726352
1982	132.35148112713685
1983	145.03260856736065
1984	152.24966707161772
1985	150.14167938148296
1986	135.56441783599013
1987	116.26233058402913
1988	119.23275907041202
1989	132.11867712004334
1990	132.50249337983672
1991	128.75146207496647
1992	124.39168943283434
1993	135.27556837978477
1994	129.28293781009145
1995	122.32391221847618
1996	128.15674692663336
1997	122.98493851051649
1998	122.86599428500458
1999	126.08968443589264
2000	113.68746025741015
2001	118.59459311618048
2002	113.40127503234503
2003	119.961055081536
2004	121.4863244088202
2005	132.89600890981595
2006	152.55105378209214
2007	172.2303390253035
2008	188.96501792436732
2009	181.23100864272084
2010	171.49176407428195
2011	171.19623714060626
2012	159.54027888951003
2013	149.5178419840848
2014	154.54611360148857
2015	149.44167313718808
2016	144.72852003681083
2017	146.53055601476828
2018	152.70118757425826
2019	156.48331703838946
2020	176.04224719587484
2021	160.62028102615986