Year	kt
1990	198471.7
1991	219101.2
1992	233650.9
1993	236729
1994	266697.1
1995	271519.5
1996	279812.1
1997	292398.6
1998	290997.4
1999	323360.4
2000	340456.2
2001	354068.4
2002	369875.8
2003	389777.1
2004	417660.4
2005	450795.7
2006	484179.1
2007	514142.8
2008	523048.3
2009	542297.1
2010	541171.1
2011	552050.9
2012	559122.1
2013	583703.1
2014	605356.1
2015	599182.7
2016	607216.3
2017	626427.9
2018	637433.7
2019	625251.5
2020	616561.3