Year kt 1990 1915.340257 1991 1355.040692 1992 1483.273865 1993 1293.619997 1994 1256.652545 1995 1327.33624 1996 1552.994239 1997 1669.796938 1998 1757.579585 1999 1211.858108 2000 1520.843393 2001 1667.26822 2002 1766.249476 2003 1889.193348 2004 2041.277687 2005 2004.8 2006 2179.3 2007 2098.4 2008 2693.3 2009 1747.5 2010 2584.2 2011 2535.9 2012 2331.6 2013 2267.3 2014 2218.4 2015 2359.1 2016 2150.7 2017 2267 2018 2500.3 2019 2601.1 2020 2527.2