Year kt 1992 1653.817 1993 1367.791 1994 861.745 1995 667.394 1996 550.05 1997 927.751 1998 887.414 1999 784.738 2000 1609.813 2001 1837.167 2002 2214.868 2003 2464.224 2004 2555.899 2005 2629.239 2006 2372.549 2007 2618.238 2008 2636.573 2009 1969.179 2010 2581.568 2011 2676.91 2012 2398.218 2013 2563.233 2014 2456.89 2015 2299.209 2016 2471.558