Year	kt
1992	3076.613
1993	2317.544
1994	1716.156
1995	1730.824
1996	2024.184
1997	1664.818
1998	1954.511
1999	1151.438
2000	1312.786
2001	1342.122
2002	1701.488
2003	1404.461
2004	1532.806
2005	1415.462
2006	1477.801
2007	1474.134
2008	1430.13
2009	623.39
2010	564.718
2011	638.058
2012	817.741
2013	627.057
2014	517.047
2015	524.381
2016	546.383