Year	kt
1992	4011.698
1993	3839.349
1994	3700.003
1995	2247.871
1996	1983.847
1997	997.424
1998	982.756
1999	447.374
2000	366.7
2001	260.357
2002	278.692
2003	337.364
2004	319.029
2005	286.026
2006	344.698
2007	168.682
2008	326.363
2009	348.365
2010	326.363
2011	333.697
2012	414.371
2013	553.717
2014	352.032
2015	370.367
2016	271.358