Year	kt
1990	21497.8
1991	23119
1992	24879
1993	25577
1994	27712.5
1995	28791.8
1996	28484.7
1997	29903.8
1998	30634.6
1999	32198.7
2000	32876.5
2001	36273
2002	37470
2003	37251.1
2004	41009
2005	43579.9
2006	44991
2007	46341
2008	48630.2
2009	48765.7
2010	51749.5
2011	55923.5
2012	58076
2013	57595.5
2014	58691.7
2015	60362.5
2016	60289.9
2017	63014.9
2018	64286.1
2019	70986.3
2020	66719.5