Year	kt
1992	3157.287
1993	2346.88
1994	2148.862
1995	2284.541
1996	3575.325
1997	2981.271
1998	2735.582
1999	2687.911
2000	2819.923
2001	2299.209
2002	2563.233
2003	2530.23
2004	2599.903
2005	2684.244
2006	2867.594
2007	3098.615
2008	2779.586
2009	2812.589
2010	2746.583
2011	2768.585
2012	2702.579
2013	2636.573
2014	2636.573
2015	2783.253
2016	2845.592