Year	% of fertilizer production
1979	5428.348214285715
1980	1549.7374343585896
1981	341.3696472822437
1982	153.56448636861475
1983	268.56474883504944
1984	277.80979407698464
1985	1935.159045725646
1986	3129.1754414385227
1987	2524.262701363073
1988	3186.153846153846
1989	3077.5554906542056
1990	1877.1854776790613
1991	3214.1120986758574
1992	2550.4374392445493
1993	2505.988095238095
1994	2891.558096250997
1995	2291.4034697508896
1996	2222.842105263158
1997	2515.2205350686913
1998	2273.0945642627107
1999	3058.0854579792253
2000	2513.8945439739414
2001	2437.0244633050424
2002	2703.376007586534
2003	2339.6522234891677
2004	2406.4561207378424
2005	2543.207752218801
2006	2571.0767420358075
2007	2836.462839166339
2008	4221.351991874506
2009	2970.0988388830247
2010	2748.57
2011	3345.0899999999997
2012	2676.1182000000003
2013	1381.4189965015833
2014	1968.044995608658
2015	1502.4472172115027
2016	1597.6478292744416
2017	1119.4210443823117
2018	1312.520083530882
2019	1803.5549060554356
2020	2838.0942199563524
2021	1461.3977583942587