Year	kt
1992	4745.098
1993	5768.191
1994	6200.897
1995	6758.281
1996	7744.704
1997	7931.721
1998	7110.313
1999	7444.01
2000	6703.276
2001	6978.301
2002	6765.615
2003	6893.96
2004	6992.969
2005	7124.981
2006	7348.668
2007	7216.656
2008	8408.431
2009	7256.993
2010	7352.335
2011	7330.333
2012	7124.981
2013	6714.277
2014	6556.596
2015	6479.589
2016	6820.62