Year	kt
1992	3953.026
1993	2603.57
1994	1895.839
1995	2313.877
1996	2002.182
1997	2438.555
1998	2365.215
1999	2266.206
2000	2500.894
2001	2907.931
2002	2959.269
2003	3083.947
2004	3050.944
2005	3109.616
2006	3223.293
2007	3113.283
2008	3054.611
2009	2808.922
2010	3347.971
2011	2951.935
2012	2772.252
2013	2757.584
2014	2478.892
2015	2515.562
2016	2533.897