Year	% of fertilizer production
1961	179.28053809554714
1962	165.70495148906755
1963	172.6616177079483
1964	163.82051963720554
1965	159.22847149013938
1966	165.94362417701154
1967	177.60814290826823
1968	203.41612082527288
1969	184.07931844422362
1970	179.14410505110754
1971	165.18323379696665
1972	162.90848090497286
1973	162.92766205987655
1974	149.55541819627794
1975	152.6041771963794
1976	148.93508256466026
1977	151.22956079504772
1978	149.01283003114878
1979	144.93515977002593
1980	141.7681334519067
1981	136.16052852942434
1982	135.1950710173041
1983	132.71842263037215
1984	133.8110236500383
1985	126.63492048721933
1986	125.1389973880193
1987	124.23342417945126
1988	125.3537737691819
1989	124.66913657364151
1990	127.512709383158
1991	129.91449677293068
1992	103.83060234895545
1993	101.5285342310509
1994	104.59274535246725
1995	102.73660451343763
1996	103.57848515478797
1997	107.44786572563038
1998	106.9436000901623
1999	104.36255556539324
2000	101.8038105012229
2001	101.06560739730295
2002	103.171045630555
2003	100.92755549772755
2004	101.58000435189676
2005	100.76041759388937
2006	104.29012193530087
2007	103.55374504285726
2008	102.72206018554607
2009	109.10325702847192
2010	100.65227260756294
2011	102.59724231190513
2012	101.61082570125349
2013	103.68312989031321
2014	100.20490365190697
2015	96.23990069092564
2016	99.73503747236857
2017	103.67333140815805
2018	104.82023009542776
2019	96.29908353731518
2020	104.09255435712096
2021	101.01204612011057