Year	kt
1990	19327.9
1991	19796.6
1992	20812.9
1993	24244.9
1994	26682.3
1995	31401
1996	35033.5
1997	40842.9
1998	45473.9
1999	46412.8
2000	51207.7
2001	56722.4
2002	66495.8
2003	70903.7
2004	85051.8
2005	92368.6
2006	94869.7
2007	105137.4
2008	117585.1
2009	132290
2010	151413.5
2011	155973.3
2012	155522.8
2013	164297.4
2014	180698.8
2015	201513.3
2016	222028.5
2017	229877.4
2018	286139.3
2019	341716.8
2020	355323.1