Year	% of fertilizer production
1961	326.6666666666667
1962	550
1963	530
1964	525
1965	255.37173870398223
1966	346.6216216216216
1967	339.0131578947369
1968	386.3636363636364
1969	225.80645161290326
1970	289.81723237597913
1971	323.10469314079427
1972	243.2126696832579
1973	150.52041633306646
1974	121.70818505338079
1975	128.7958115183246
1976	171.67737064730642
1977	125.74187680564968
1978	128.31916426512967
1979	228.91105121293802
1980	431.68498168498166
1981	357.9741379310345
1982	132.73269327943407
1983	154.9
1984	113.74525213200886
1985	158.57154965390592
1986	163.36520536412291
1987	140.1510749564207
1988	83.19136854060193
1989	87.77194298574643
1990	97.6923076923077
1991	77.2804054054054
1992	98.77551020408163
1993	90.02751031636865
1994	106.04444444444445
1995	190.94650205761317
1996	457.83132530120486
1997	341.5492957746479
1998	168.48673946957877
1999	147.38510301109352
2000	83.15315315315316
2001	68.37662337662339
2002	76.11401673640167
2003	42.62684589170769
2004	90.69065303366452
2005	53.90321645899739
2006	191.44347826086957
2007	61.948001552192466
2008	283.9566755083996
2009	347.40259740259745
2010	271.7889908256881
2011	265.8426966292135
2012	287.4326750448833
2013	175.67849686847597
2014	40.51467460655041
2015	21.792007942417474
2016	14.475641502417256
2017	14.475641502417256
2018	14.475641502417256
2019	14.475641502417256
2020	14.475641502417256
2021	14.475641502417256