Year	Tonnes
1992	99.009
1993	99.009
1994	102.676
1995	106.343
1996	106.343
1997	110.01
1998	117.344
1999	110.01
2000	124.678
2001	168.682
2002	143.013
2003	143.013
2004	143.013
2005	121.011
2006	121.011
2007	139.346
2008	117.344
2009	161.348
2010	113.677
2011	121.011
2012	135.679
2013	143.013
2014	150.347