Year	kt
1990	1101.2
1991	1086.3
1992	909.2
1993	816.9
1994	1454.9
1995	1413
1996	1131
1997	1149.9
1998	1172
1999	1257.7
2000	1090.6
2001	1105.8
2002	1074.8
2003	996.5
2004	985.6
2005	982.5
2006	990.9
2007	1024.6
2008	1005.6
2009	1042.3
2010	849.2
2011	814.9
2012	806.3
2013	957
2014	977.4
2015	1015.9
2016	1116
2017	1105.8
2018	1105.8
2019	1169.5
2020	1147.7