Year	kt
1990	453.82
1991	374.5198
1992	402.374
1993	420.769
1994	418.824
1995	422.237
1996	435.902
1997	454.743
1998	490.455
1999	399.774
2000	425.81
2001	448.27
2002	443.76
2003	476.087
2004	558.67
2005	667.8
2006	687.15
2007	641.07
2008	540.16
2009	533.84
2010	729.76
2011	848.18
2012	944.15
2013	905.21
2014	1205.1
2015	1247.8
2016	1397.89
2017	1268.4
2018	1126.6
2019	1146.2
2020	1179.5