Year	kt
1990	0
1991	0
1992	435.7
1993	630.7
1994	730.66
1995	796.67
1996	870.42
1997	824.07
1998	611.05
1999	646.32
2000	633.19
2001	692.92
2002	679.15
2003	684.98
2004	703.5
2005	589.83
2006	529.57
2007	516.52
2008	449.31
2009	467.83
2010	502.95
2011	595.89
2012	625.34
2013	589.43
2014	592.22
2015	570.9
2016	580.5
2017	581.47
2018	677.7
2019	697.2
2020	706.4