Year	% of fertilizer production
1961	172.6385246725921
1962	160.32861636867042
1963	164.71278429906417
1964	164.29058131404673
1965	176.2400386347434
1966	191.3674391593924
1967	187.79699198712026
1968	173.61212235214757
1969	164.22051394625115
1970	157.85802984070511
1971	161.68227490465156
1972	159.48335249246722
1973	153.40150117312132
1974	151.7180024913393
1975	149.12097709377963
1976	144.81201598750462
1977	144.9638686752089
1978	142.87884686867133
1979	157.5794203386127
1980	164.06854403250227
1981	156.36637428212492
1982	146.50114857611192
1983	154.72406626910268
1984	146.61277814900316
1985	159.28554592235616
1986	147.47986912318382
1987	131.8272411348716
1988	132.64055260876455
1989	128.48734593144107
1990	90.3834877448106
1991	72.48881622680153
1992	80.4987383669465
1993	87.15086722843756
1994	84.90319489254743
1995	72.96600979370642
1996	80.20517587939699
1997	83.71245691777449
1998	75.74472224924604
1999	83.30150068212824
2000	83.74468526392201
2001	77.25623087550028
2002	71.57670454545455
2003	66.37070376432078
2004	62.53456221198157
2005	74.36081694402421
2006	75.73789392774789
2007	75.68904593639576
2008	74.1953125
2009	89.64068825910931
2010	79.67386873216469
2011	71.51860288534549
2012	71.95112921140318
2013	77.0421974522293
2014	67.28482708753035
2015	66.07484927132555
2016	72.14298233697086
2017	70.21902953960311
2018	66.0297948446581
2019	67.26407933390189
2020	58.947890950833916
2021	58.736442888406195