Year	kt
1990	1947.46
1991	1913.98
1992	1944.8
1993	1983.65
1994	2090.64
1995	2001.14
1996	2266.72
1997	2153.97
1998	2153.38
1999	2115.39
2000	2225.44
2001	2163.29
2002	2243.77
2003	2226.41
2004	2309.99
2005	2261.25
2006	2311.85
2007	2382.97
2008	2182.63
2009	2108
2010	1959.124
2011	1888.35
2012	1859.9
2013	2031.8
2014	2047.5
2015	2057.5
2016	1633
2017	1671
2018	1699.3
2019	1638.2
2020	1446.6