Year	% of fertilizer production
1961	183.37105014191107
1962	169.910409556314
1963	189.36186263415973
1964	174.63601971798693
1965	176.20061583424663
1966	137.3214711634785
1967	141.5427275018906
1968	163.27078565980167
1969	196.31652906087575
1970	193.5698712624585
1971	192.15686274509804
1972	156.62939506279062
1973	307.12300683371296
1974	219.56967213114754
1975	220.265447833348
1976	204.00113286076075
1977	191.5904297715362
1978	184.93234814927956
1979	169.27688902585942
1980	131.00428059201695
1981	118.26094219846308
1982	96.37981472452462
1983	103.29396325459317
1984	106.55957161981257
1985	100.64102564102564
1986	118.31184056271982
1987	118.87148073978089
1988	113.26923076923077
1989	106.84272727272727
1990	111.72320909494444
1991	98.00670197376587
1992	96.38967952569847
1993	99.93850796867953
1994	80.14172466524295
1995	94.34744552448518
1996	94.7993447993448
1997	94.7013431656571
1998	91.13836575875487
1999	82.07501217730152
2000	86.25665464978141
2001	73.83574561886171
2002	76.46846392396719
2003	79.35037985971772
2004	87.34625013606183
2005	83.55026705664035
2006	76.71541543054268
2007	52.58000282224556
2008	47.135518473556786
2009	46.95668000229188
2010	42.77267580827777
2011	45.64780170646591
2012	45.02206761903452
2013	46.84554024655547
2014	44.084829946302044
2015	62.29110390133993
2016	53.13863712655254
2017	43.300357383332475
2018	42.4738458335502
2019	42.291173178540745
2020	42.85604271485779
2021	42.85604271485779