Year	kt
1990	12543.4
1991	14985
1992	14677.6
1993	16614.6
1994	18491
1995	19047.7
1996	20942.1
1997	25392.6
1998	26502.7
1999	29002.4
2000	28666.2
2001	28650.6
2002	32496.1
2003	34744.2
2004	37074.4
2005	38536.6
2006	43940.5
2007	50026.5
2008	53279.3
2009	54310.2
2010	60912.1
2011	68521.5
2012	75430.1
2013	76540.7
2014	82167.8
2015	85211.3
2016	87066.7
2017	87472.1
2018	87099.4
2019	89486.8
2020	87578.3