Year	kt
1992	5049.459
1993	2262.539
1994	1118.435
1995	407.037
1996	2409.219
1997	2610.904
1998	3036.276
1999	2537.564
2000	2123.193
2001	1675.819
2002	1602.479
2003	1716.156
2004	1551.141
2005	1866.503
2006	2097.524
2007	2522.896
2008	2207.534
2009	2808.922
2010	2764.918
2011	2709.913
2012	2720.914
2013	2658.575
2014	2834.591
2015	3219.626
2016	3883.353