Year	kt
1990	185.39
1991	182.8
1992	205.11
1993	177.05
1994	205.9
1995	246.03
1996	296.56
1997	381.17
1998	377.42
1999	378.53
2000	388.84
2001	379.31
2002	411.52
2003	377.73
2004	313.51
2005	395.42
2006	397.5
2007	398.71
2008	422.62
2009	396.83
2010	493.18
2011	744.2
2012	833.9
2013	908
2014	1012.4
2015	1042.1
2016	1228.4
2017	1309.5
2018	1454.3
2019	1433
2020	1035.2