Year	% of fertilizer production
1992	640
1993	380
1994	700
1995	500
1996	1514.6341463414635
1997	1278.175
1998	921.8
1999	265
2000	222.5
2001	302.5
2004	243.594125
2005	154.1887654320988
2006	174.57134203795937
2007	107.2109139307897
2008	77.2789224952741