Year	% of fertilizer production
1992	94.86166007905138
1993	91.97952218430035
1994	91.17647058823529
1995	72.94117647058823
1996	59.96275605214153
1997	47.83748361730013
1998	61.48282097649186
1999	42.598509052183175
2000	42
2001	71.61125319693095
2002	31.807228915662648
2003	14.985111114000754
2004	15.118788200903536
2005	22.685071963624175
2006	17.22493292960354
2007	14.519579432871598
2008	14.049130834635374
2009	16.09525635917181
2010	12.95931584976773
2011	10.686748640814294
2012	13.747095556317115
2013	18.912907987372208
2014	15.315490612310132
2015	14.658852965294106
2016	21.014294342432354
2017	15.461866181675497
2018	12.6058722204657
2019	12.127877431177353
2020	30.921169589752918