Year	kt
1992	9699.215
1993	7392.672
1994	7484.347
1995	4213.383
1996	4726.763
1997	3887.02
1998	4059.369
1999	4030.033
2000	4921.114
2001	5053.126
2002	5045.792
2003	3879.686
2004	4587.417
2005	4429.736
2006	4756.099
2007	5038.458
2008	4928.448
2009	5309.816
2010	5155.802
2011	5419.826
2012	5474.831
2013	5691.184
2014	6149.559
2015	5533.503
2016	6094.554